feat: Implement provisioning pipelines for subscription management

- Add ReactivatePipeline to handle subscription reactivation, including scaling Docker services, health verification, status updates, audit logging, and broadcasting status changes.
- Introduce RotateCredentialsPipeline for OAuth2 credential rotation, managing the deletion of old apps, creation of new ones, credential storage, access verification, and audit logging.
- Create StepRunner to manage job step execution, including lifecycle management and progress broadcasting via SignalR.
- Implement SuspendPipeline for subscription suspension, scaling down services, updating statuses, logging audits, and broadcasting changes.
- Add UpdateScreenLimitPipeline to update Xibo CMS screen limits and record snapshots.
- Introduce XiboFeatureManifests for hardcoded feature ACLs per role.
- Add docker-compose.dev.yml for local development with PostgreSQL setup.

.env.example

@@ -0,0 +1,11 @@
+# OTSSignsOrchestrator.Server — required environment variables
+# Copy to .env and fill in real values.
+
+ConnectionStrings__OrchestratorDb=Host=localhost;Port=5432;Database=orchestrator_dev;Username=ots;Password=devpassword
+Stripe__WebhookSecret=whsec_...
+Stripe__SecretKey=sk_test_...
+Jwt__Key=change-me-to-a-random-256-bit-key
+Authentik__BaseUrl=https://auth.example.com
+Authentik__ApiToken=
+SendGrid__ApiKey=SG....
+OTS_SIGNS_SERVER_URL=http://localhost:5000

.gitea/workflows/docker-publish.yml

@@ -1,55 +0,0 @@
-# Gitea Actions workflow: build Docker image and push to a container registry
-# Place secrets in the repository settings: REGISTRY (host[:port]), IMAGE_NAME, DOCKER_USERNAME, DOCKER_PASSWORD
-
-name: Build and Publish Docker Image
-
-on:
-  push:
-    branches:
-      - main
-  workflow_dispatch: {}
-
-jobs:
-  build-and-push:
-    # Use an appropriate runner that has Docker available (self-hosted runner)
-    runs-on: self-hosted
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-
-      - name: Build and push image
-        # run everything in a single shell step to keep tag calculation simple
-        run: |
-          set -euo pipefail
-          REGISTRY="${{ secrets.REGISTRY }}"
-          IMAGE_NAME="${{ secrets.IMAGE_NAME }}"
-          DOCKER_USERNAME="${{ secrets.DOCKER_USERNAME }}"
-          DOCKER_PASSWORD="${{ secrets.DOCKER_PASSWORD }}"
-
-          if [ -z "$REGISTRY" ] || [ -z "$IMAGE_NAME" ]; then
-            echo "Missing required secrets: REGISTRY and IMAGE_NAME must be set." >&2
-            exit 1
-          fi
-
-          TAG=$(git rev-parse --short HEAD)
-          IMAGE="$REGISTRY/$IMAGE_NAME:$TAG"
-          LATEST="$REGISTRY/$IMAGE_NAME:latest"
-
-          echo "Logging in to $REGISTRY"
-          echo "$DOCKER_PASSWORD" | docker login "$REGISTRY" -u "$DOCKER_USERNAME" --password-stdin
-
-          echo "Building $IMAGE (and tagging as latest)"
-          docker build -t "$IMAGE" -t "$LATEST" .
-
-          echo "Pushing $IMAGE"
-          docker push "$IMAGE"
-
-          echo "Pushing $LATEST"
-          docker push "$LATEST"
-
-        env:
-          # secrets are available via ${{ secrets.<name> }} in Gitea Actions
-          REGISTRY: ${{ secrets.REGISTRY }}
-          IMAGE_NAME: ${{ secrets.IMAGE_NAME }}
-          DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
-          DOCKER_PASSWORD: ${{ secrets.DOCKER_PASSWORD }}

.github/copilot-instructions.md

@@ -0,0 +1,123 @@
+# Project Guidelines — OTS Signs Orchestrator
+
+## Architecture
+
+Layered MVVM desktop app for provisioning and managing Xibo CMS instances on Docker Swarm.
+
+- **OTSSignsOrchestrator.Core** — class library: services, EF Core data access, models, configuration. Reusable across UIs.
+- **OTSSignsOrchestrator.Desktop** — Avalonia 11 UI: views, view models, DI setup. References Core.
+- **templates/** — Docker Compose + PHP templates with `{{PLACEHOLDER}}` substitution.
+
+### Key patterns
+- Services injected via `IServiceProvider` (registered in `App.axaml.cs` → `ConfigureServices()`)
+- Singletons: stateful services (SSH connections, Docker CLI). Transient: stateless logic.
+- Configuration via `IOptions<T>` bound from `appsettings.json` (see `AppOptions.cs` for all sections).
+- Bitwarden Secrets Manager is the source of truth for all sensitive config. `SettingsService` caches in-memory.
+- Local SQLite DB (`otssigns-desktop.db`) stores SSH hosts + operation logs. Credentials encrypted via Data Protection API.
+
+### Scope & file discipline
+**The Server project is net-new — keep concerns separated.**
+- Never modify `OTSSignsOrchestrator.Core` or `OTSSignsOrchestrator.Desktop` unless the prompt explicitly says to.
+- When in doubt, add new code to `OTSSignsOrchestrator.Server`.
+- Never modify `XiboContext.cs` without explicit instruction.
+
+### External integrations
+Xibo CMS REST API (OAuth2), Authentik SAML IdP, Bitwarden Secrets SDK, Docker Swarm (via SSH), Git (LibGit2Sharp), MySQL 8.4, NFS volumes, Pangolin/Newt VPN.
+
+#### Xibo API rules — non-negotiable
+- `GET /api/application` is **BLOCKED**. Only POST and DELETE exist.
+- All group endpoints are `/api/group`, never `/api/usergroup`.
+- Feature assignment is `POST /api/group/{id}/acl`, NOT `/features`.
+- Xibo paginates at 10 items by default. **Always pass `length=200`** and use `GetAllPagesAsync` for every list call. Missing this causes silent data truncation.
+- OAuth2 client secret is returned **ONCE** in the `POST /api/application` response. Capture it immediately — **it cannot be retrieved again**.
+
+#### Stripe webhooks — idempotency is mandatory
+- Every Stripe webhook handler must check `OrchestratorDbContext.StripeEvents` for the `stripe_event_id` before processing anything.
+- Insert the `StripeEvent` row first, then process the webhook. This is not optional — duplicate webhook delivery is guaranteed by Stripe.
+
+#### No AI autonomy in infrastructure actions
+- Never generate any endpoint or method that sends a message, makes an external call, or takes infrastructure action without an explicit operator-initiated `Job` record being created first.
+- All automated actions flow through the `ProvisioningWorker` job queue.
+
+## Build and Test
+
+```bash
+# Build
+dotnet build OTSSignsOrchestrator.Desktop/OTSSignsOrchestrator.Desktop.csproj
+
+# Run
+dotnet run --project OTSSignsOrchestrator.Desktop/OTSSignsOrchestrator.Desktop.csproj
+
+# No test suite currently — no xUnit/NUnit projects
+```
+
+- .NET 9.0, Avalonia 11.2.3, CommunityToolkit.Mvvm 8.4
+- Runtime identifiers: `linux-x64`, `win-x64`, `osx-x64`, `osx-arm64`
+- EF Core migrations in `OTSSignsOrchestrator.Core/Migrations/`
+
+### Test coverage non-negotiables
+Unit tests are **required** for:
+- Evidence hashing and tamper detection
+- AI context assembly
+- Pattern detection ruleset engine
+- `AbbreviationService` uniqueness logic
+- Stripe webhook idempotency
+
+Integration tests **require** Testcontainers with a real PostgreSQL 16 instance — **no SQLite substitutions**.
+
+## Conventions
+
+### ViewModels
+- Inherit `ObservableObject` (CommunityToolkit.Mvvm). Use `[ObservableProperty]` for bindable fields and `[RelayCommand]` for commands.
+- React to changes via `partial void OnXxxChanged(T value)` methods generated by the toolkit.
+- Resolve services from `IServiceProvider` in constructors. Navigation via `MainWindowViewModel.CurrentView`.
+- Confirmation dialogs use `Func<string, string, Task<bool>> ConfirmAsync` property — wired by the View.
+
+### Avalonia threading — critical for stability
+All SignalR message handlers and background thread continuations that touch `ObservableProperty` or `ObservableCollection` **MUST** be wrapped in:
+```csharp
+Avalonia.Threading.Dispatcher.UIThread.InvokeAsync(() => { ... });
+```
+**Failure to do this causes silent cross-thread exceptions in Avalonia.** Never suggest direct property assignment from a non-UI thread.
+
+### Views (Avalonia XAML)
+- Compiled bindings enabled (`x:CompileBindings="True"`). DataTemplates in `MainWindow.axaml` map ViewModel types to View UserControls.
+- Layout: DockPanel with status bar (bottom), sidebar nav (left), dynamic ContentControl (center).
+- Style: Fluent theme, dark palette (`#0C0C14` accents).
+
+### Services
+- Interface + implementation pattern for testable services (`IXiboApiService`, `IDockerCliService`, etc.).
+- `SshDockerCliService` is a singleton — **must call `SetHost(host)` before each operation** in loops.
+- All long operations are `async Task`. Use `IsBusy` + `StatusMessage` properties for UI feedback.
+
+### Naming
+- Customer abbreviation: exactly 3 lowercase letters (`^[a-z]{3}$`).
+- Stack name: `{abbrev}-cms-stack`. Service: `{abbrev}-web`. DB: `{abbrev}_cms_db`.
+- Secret names built via `AppConstants` helpers (e.g., `CustomerMysqlPasswordSecretName(abbrev)`).
+- `AppConstants.SanitizeName()` filters to `[a-z0-9_-]`.
+
+### Credential handling
+Never store OAuth2 client secrets, Stripe keys, or SSH passwords in the database. Secrets go to the Bitwarden CLI wrapper only. `OauthAppRegistry` stores `clientId` only — never the secret. Log credentials to `JobStep` output **ONLY** as a last-resort break-glass fallback, and mark it explicitly as emergency recovery data in the log.
+
+### Code generation verification
+After generating any class that implements an interface, **verify all interface members are implemented.** After generating any pipeline, **verify all steps are implemented as `JobStep` entities with progress broadcast via `IHubContext<FleetHub>`.** Do not stub steps as TODO — implement them fully or flag explicitly that the step requires external infrastructure access that cannot be completed in this context.
+
+### Data layer
+- Entities in `Core/Models/Entities/`, DTOs in `Core/Models/DTOs/`.
+- `XiboContext` applies unique index on `SshHost.Label` and encrypts credential fields.
+- Add new migrations via: `dotnet ef migrations add <Name> --project OTSSignsOrchestrator.Core --startup-project OTSSignsOrchestrator.Desktop`
+
+### Immutability enforcement
+**AuditLog, Message, and Evidence are append-only by design.** Never generate `Update()` or `Delete()` methods on these repositories. Add an explicit comment on each repository class:
+```csharp
+// IMMUTABLE — no update or delete operations permitted.
+```
+
+## Pitfalls
+
+- **SSH singleton state**: `SshDockerCliService.SetHost()` must be called before each host operation — stale host causes silent failures.
+- **Bitwarden cache**: After creating secrets during deployment, call `FlushCacheAsync()` before reading them back.
+- **Data Protection keys**: Stored in `%APPDATA%/OTSSignsOrchestrator/keys`. If lost, encrypted SSH passwords are unrecoverable.
+- **Docker volumes are sticky**: Failed deploys leave volumes with old NFS driver options. Use `PurgeStaleVolumes: true` to force fresh volumes (causes data loss).
+- **No saga/rollback**: Instance creation spans Git → MySQL → Docker → Xibo. Partial failures leave orphaned resources; cleanup is manual via `OperationLog`.
+- **Template CIFS→NFS compat**: Old `{{CIFS_*}}` tokens still render correctly as NFS equivalents.

.gitignore

@@ -56,3 +56,4 @@ docker-compose.override.yml
 
 # Ignore appsettings development files (if you keep secrets locally)
 appsettings.Development.json
+.template-cache/

OTSSignsOrchestrator.Core/Configuration/AppOptions.cs

@@ -47,6 +47,32 @@ public class DatabaseOptions
     public string Provider { get; set; } = "Sqlite";
 }
 
+/// <summary>
+/// Bitwarden Secrets Manager connection settings.
+/// Stored in appsettings.json so they can bootstrap the connection before any other settings are loaded.
+/// </summary>
+public class BitwardenOptions
+{
+    public const string SectionName = "Bitwarden";
+
+    public string IdentityUrl { get; set; } = "https://identity.bitwarden.com";
+    public string ApiUrl { get; set; } = "https://api.bitwarden.com";
+
+    /// <summary>Machine account access token (sensitive — may be set via environment variable).</summary>
+    public string AccessToken { get; set; } = string.Empty;
+
+    public string OrganizationId { get; set; } = string.Empty;
+
+    /// <summary>Project where config secrets are created/listed. Required.</summary>
+    public string ProjectId { get; set; } = string.Empty;
+
+    /// <summary>
+    /// Optional separate project for instance-level secrets (DB passwords, Newt credentials, etc.).
+    /// When empty, instance secrets are stored in the default <see cref="ProjectId"/>.
+    /// </summary>
+    public string InstanceProjectId { get; set; } = string.Empty;
+}
+
 public class InstanceDefaultsOptions
 {
     public const string SectionName = "InstanceDefaults";
@@ -56,7 +82,7 @@ public class InstanceDefaultsOptions
     public string? TemplateRepoPat { get; set; }
 
     /// <summary>Template for CMS server hostname. Use {abbrev} as placeholder.</summary>
-    public string CmsServerNameTemplate { get; set; } = "{abbrev}.ots-signs.com";
+    public string CmsServerNameTemplate { get; set; } = "app.ots-signs.com";
 
     public string SmtpServer { get; set; } = string.Empty;
     public string SmtpUsername { get; set; } = string.Empty;

OTSSignsOrchestrator.Core/Data/XiboContext.cs

@@ -17,7 +17,6 @@ public class XiboContext : DbContext
 
     public DbSet<SshHost> SshHosts => Set<SshHost>();
     public DbSet<OperationLog> OperationLogs => Set<OperationLog>();
-    public DbSet<AppSetting> AppSettings => Set<AppSetting>();
 
     protected override void OnModelCreating(ModelBuilder modelBuilder)
     {
@@ -50,12 +49,5 @@ public class XiboContext : DbContext
             entity.HasIndex(e => e.StackName);
             entity.HasIndex(e => e.Operation);
         });
-
-        // --- AppSetting ---
-        modelBuilder.Entity<AppSetting>(entity =>
-        {
-            entity.HasKey(e => e.Key);
-            entity.HasIndex(e => e.Category);
-        });
     }
 }

OTSSignsOrchestrator.Core/Migrations/20260225135644_DropAppSettings.Designer.cs

@@ -0,0 +1,125 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using OTSSignsOrchestrator.Core.Data;
+
+#nullable disable
+
+namespace OTSSignsOrchestrator.Core.Migrations
+{
+    [DbContext(typeof(XiboContext))]
+    [Migration("20260225135644_DropAppSettings")]
+    partial class DropAppSettings
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder.HasAnnotation("ProductVersion", "9.0.2");
+
+            modelBuilder.Entity("OTSSignsOrchestrator.Core.Models.Entities.OperationLog", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<long?>("DurationMs")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Message")
+                        .HasMaxLength(2000)
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("Operation")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("StackName")
+                        .HasMaxLength(150)
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<DateTime>("Timestamp")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("UserId")
+                        .HasMaxLength(200)
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Operation");
+
+                    b.HasIndex("StackName");
+
+                    b.HasIndex("Timestamp");
+
+                    b.ToTable("OperationLogs");
+                });
+
+            modelBuilder.Entity("OTSSignsOrchestrator.Core.Models.Entities.SshHost", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Host")
+                        .IsRequired()
+                        .HasMaxLength(500)
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("KeyPassphrase")
+                        .HasMaxLength(2000)
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Label")
+                        .IsRequired()
+                        .HasMaxLength(200)
+                        .HasColumnType("TEXT");
+
+                    b.Property<bool?>("LastTestSuccess")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<DateTime?>("LastTestedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Password")
+                        .HasMaxLength(2000)
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("Port")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("PrivateKeyPath")
+                        .HasMaxLength(1000)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<bool>("UseKeyAuth")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Username")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Label")
+                        .IsUnique();
+
+                    b.ToTable("SshHosts");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

OTSSignsOrchestrator.Core/Migrations/20260225135644_DropAppSettings.cs

@@ -0,0 +1,42 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace OTSSignsOrchestrator.Core.Migrations
+{
+    /// <inheritdoc />
+    public partial class DropAppSettings : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "AppSettings");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "AppSettings",
+                columns: table => new
+                {
+                    Key = table.Column<string>(type: "TEXT", maxLength: 200, nullable: false),
+                    Category = table.Column<string>(type: "TEXT", maxLength: 50, nullable: false),
+                    IsSensitive = table.Column<bool>(type: "INTEGER", nullable: false),
+                    UpdatedAt = table.Column<DateTime>(type: "TEXT", nullable: false),
+                    Value = table.Column<string>(type: "TEXT", maxLength: 4000, nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_AppSettings", x => x.Key);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_AppSettings_Category",
+                table: "AppSettings",
+                column: "Category");
+        }
+    }
+}

OTSSignsOrchestrator.Core/Migrations/XiboContextModelSnapshot.cs

@@ -17,34 +17,6 @@ namespace OTSSignsOrchestrator.Core.Migrations
 #pragma warning disable 612, 618
             modelBuilder.HasAnnotation("ProductVersion", "9.0.2");
 
-            modelBuilder.Entity("OTSSignsOrchestrator.Core.Models.Entities.AppSetting", b =>
-                {
-                    b.Property<string>("Key")
-                        .HasMaxLength(200)
-                        .HasColumnType("TEXT");
-
-                    b.Property<string>("Category")
-                        .IsRequired()
-                        .HasMaxLength(50)
-                        .HasColumnType("TEXT");
-
-                    b.Property<bool>("IsSensitive")
-                        .HasColumnType("INTEGER");
-
-                    b.Property<DateTime>("UpdatedAt")
-                        .HasColumnType("TEXT");
-
-                    b.Property<string>("Value")
-                        .HasMaxLength(4000)
-                        .HasColumnType("TEXT");
-
-                    b.HasKey("Key");
-
-                    b.HasIndex("Category");
-
-                    b.ToTable("AppSettings");
-                });
-
             modelBuilder.Entity("OTSSignsOrchestrator.Core.Models.Entities.OperationLog", b =>
                 {
                     b.Property<Guid>("Id")

OTSSignsOrchestrator.Core/Models/DTOs/AuthentikFlowItem.cs

@@ -0,0 +1,17 @@
+namespace OTSSignsOrchestrator.Core.Models.DTOs;
+
+/// <summary>
+/// Represents an Authentik flow for display in the Settings UI.
+/// </summary>
+public class AuthentikFlowItem
+{
+    public string Pk { get; set; } = string.Empty;
+    public string Slug { get; set; } = string.Empty;
+    public string Name { get; set; } = string.Empty;
+    public string Designation { get; set; } = string.Empty;
+
+    /// <summary>Display text for ComboBox: "slug — Name".</summary>
+    public string DisplayText => $"{Slug}  —  {Name}";
+
+    public override string ToString() => DisplayText;
+}

OTSSignsOrchestrator.Core/Models/DTOs/AuthentikGroupItem.cs

@@ -0,0 +1,18 @@
+namespace OTSSignsOrchestrator.Core.Models.DTOs;
+
+/// <summary>
+/// Represents an Authentik group for display and sync operations.
+/// </summary>
+public class AuthentikGroupItem
+{
+    public string Pk { get; set; } = string.Empty;
+    public string Name { get; set; } = string.Empty;
+    public int MemberCount { get; set; }
+
+    /// <summary>Display text for UI: "Group Name (N members)".</summary>
+    public string DisplayText => MemberCount > 0
+        ? $"{Name}  ({MemberCount} member{(MemberCount == 1 ? "" : "s")})"
+        : Name;
+
+    public override string ToString() => DisplayText;
+}

OTSSignsOrchestrator.Core/Models/DTOs/AuthentikKeypairItem.cs

@@ -0,0 +1,15 @@
+namespace OTSSignsOrchestrator.Core.Models.DTOs;
+
+/// <summary>
+/// Represents an Authentik certificate keypair for display in the Settings UI.
+/// </summary>
+public class AuthentikKeypairItem
+{
+    public string Pk { get; set; } = string.Empty;
+    public string Name { get; set; } = string.Empty;
+
+    /// <summary>Display text for ComboBox.</summary>
+    public string DisplayText => $"{Name}  ({Pk[..Math.Min(8, Pk.Length)]})";
+
+    public override string ToString() => DisplayText;
+}

OTSSignsOrchestrator.Core/Models/DTOs/AuthentikSamlConfig.cs

@@ -0,0 +1,32 @@
+namespace OTSSignsOrchestrator.Core.Models.DTOs;
+
+/// <summary>
+/// Holds the IdP metadata extracted from an Authentik SAML provider,
+/// used to render the settings-custom.php template.
+/// </summary>
+public class AuthentikSamlConfig
+{
+    /// <summary>IdP entity ID from SAML metadata (typically "authentik").</summary>
+    public string IdpEntityId { get; set; } = string.Empty;
+
+    /// <summary>Base64-encoded X.509 signing certificate (no BEGIN/END markers).</summary>
+    public string IdpX509Cert { get; set; } = string.Empty;
+
+    /// <summary>IdP Single Sign-On URL (HTTP-Redirect binding).</summary>
+    public string SsoUrlRedirect { get; set; } = string.Empty;
+
+    /// <summary>IdP Single Sign-On URL (HTTP-POST binding).</summary>
+    public string SsoUrlPost { get; set; } = string.Empty;
+
+    /// <summary>IdP Single Logout URL (HTTP-Redirect binding).</summary>
+    public string SloUrlRedirect { get; set; } = string.Empty;
+
+    /// <summary>IdP Single Logout URL (HTTP-POST binding).</summary>
+    public string SloUrlPost { get; set; } = string.Empty;
+
+    /// <summary>Authentik provider primary key (for audit/debugging).</summary>
+    public int ProviderId { get; set; }
+
+    /// <summary>Slug used in Authentik application URLs.</summary>
+    public string ApplicationSlug { get; set; } = string.Empty;
+}

OTSSignsOrchestrator.Core/Models/DTOs/CreateInstanceDto.cs

@@ -37,4 +37,11 @@ public class CreateInstanceDto
 
     [MaxLength(500)]
     public string? NfsExtraOptions { get; set; }
+
+    /// <summary>
+    /// When true, any existing Docker volumes with the same stack prefix are removed before
+    /// deploying, so fresh volumes are created from the current compose driver_opts.
+    /// Defaults to false to avoid accidental data loss on re-deploys.
+    /// </summary>
+    public bool PurgeStaleVolumes { get; set; } = false;
 }

OTSSignsOrchestrator.Core/Models/DTOs/DeploymentResultDto.cs

@@ -10,4 +10,10 @@ public class DeploymentResultDto
     public int ExitCode { get; set; }
     public long DurationMs { get; set; }
     public int ServiceCount { get; set; }
+
+    /// <summary>The instance URL including the abbreviation sub-path (e.g. https://ots.ots-signs.com/ots).</summary>
+    public string? InstanceUrl { get; set; }
+
+    /// <summary>The 3-letter abbreviation for this instance.</summary>
+    public string? Abbrev { get; set; }
 }

OTSSignsOrchestrator.Core/Models/DTOs/ServiceLogEntry.cs

@@ -0,0 +1,24 @@
+namespace OTSSignsOrchestrator.Core.Models.DTOs;
+
+/// <summary>
+/// Represents a single log line from a Docker service.
+/// Parsed from <c>docker service logs --timestamps</c> output.
+/// </summary>
+public class ServiceLogEntry
+{
+    /// <summary>UTC timestamp of the log entry (from Docker).</summary>
+    public DateTimeOffset Timestamp { get; set; }
+
+    /// <summary>Service/replica identifier (e.g. "acm-cms-stack_acm-web.1.abc123").</summary>
+    public string Source { get; set; } = string.Empty;
+
+    /// <summary>The log message text.</summary>
+    public string Message { get; set; } = string.Empty;
+
+    /// <summary>Short service name without the stack prefix (e.g. "acm-web").</summary>
+    public string ServiceName { get; set; } = string.Empty;
+
+    /// <summary>Formatted display string for binding: "[timestamp] source | message".</summary>
+    public string DisplayLine =>
+        $"[{Timestamp:HH:mm:ss}] {Source} | {Message}";
+}

OTSSignsOrchestrator.Core/Models/DTOs/TemplateConfig.cs

@@ -4,4 +4,10 @@ public class TemplateConfig
 {
     public string Yaml { get; set; } = string.Empty;
     public DateTime FetchedAt { get; set; } = DateTime.UtcNow;
+
+    /// <summary>
+    /// Local filesystem path to the cached git clone.
+    /// Used to access additional template files (e.g. settings-custom.php.template).
+    /// </summary>
+    public string CacheDir { get; set; } = string.Empty;
 }

OTSSignsOrchestrator.Core/OTSSignsOrchestrator.Core.csproj

@@ -7,6 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="Bitwarden.Secrets.Sdk" Version="1.0.0" />
     <PackageReference Include="LibGit2Sharp" Version="0.31.0" />
     <PackageReference Include="Microsoft.AspNetCore.DataProtection" Version="9.0.2" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="9.0.2" />

OTSSignsOrchestrator.Core/Services/BitwardenSecretService.cs

@@ -0,0 +1,230 @@
+using Bitwarden.Sdk;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
+using OTSSignsOrchestrator.Core.Configuration;
+
+namespace OTSSignsOrchestrator.Core.Services;
+
+/// <summary>
+/// Stores and retrieves secrets from Bitwarden Secrets Manager via the official Bitwarden C# SDK.
+///
+/// Configuration is read from <see cref="BitwardenOptions"/> (bound to appsettings.json → "Bitwarden").
+///
+/// The SDK state file is persisted to %APPDATA%/OTSSignsOrchestrator/bitwarden.state
+/// so the SDK can cache its internal state across restarts.
+/// </summary>
+public class BitwardenSecretService : IBitwardenSecretService, IDisposable
+{
+    private readonly IOptionsMonitor<BitwardenOptions> _optionsMonitor;
+    private readonly ILogger<BitwardenSecretService> _logger;
+
+    // Lazily created on first use (per service instance — registered as Transient).
+    private BitwardenClient? _client;
+    private string? _clientAccessToken; // track which token the client was created with
+    private bool _disposed;
+
+    /// <summary>Always returns the latest config snapshot (reloaded when appsettings.json changes).</summary>
+    private BitwardenOptions Options => _optionsMonitor.CurrentValue;
+
+    public BitwardenSecretService(
+        IOptionsMonitor<BitwardenOptions> optionsMonitor,
+        ILogger<BitwardenSecretService> logger)
+    {
+        _optionsMonitor = optionsMonitor;
+        _logger         = logger;
+    }
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // IBitwardenSecretService
+    // ─────────────────────────────────────────────────────────────────────────
+
+    public Task<bool> IsConfiguredAsync()
+    {
+        var opts = Options;
+        var configured = !string.IsNullOrWhiteSpace(opts.AccessToken)
+                      && !string.IsNullOrWhiteSpace(opts.OrganizationId);
+        return Task.FromResult(configured);
+    }
+
+    public async Task<string> CreateSecretAsync(string key, string value, string note = "")
+    {
+        var client     = await GetClientAsync();
+        var orgId      = GetOrgId();
+        var projectIds = GetProjectIds();
+
+        var result = await Task.Run(() => client.Secrets.Create(orgId, key, value, note, projectIds));
+
+        _logger.LogInformation("Bitwarden secret created: key={Key}, id={Id}", key, result.Id);
+        return result.Id.ToString();
+    }
+
+    public async Task<string> CreateInstanceSecretAsync(string key, string value, string note = "")
+    {
+        var client     = await GetClientAsync();
+        var orgId      = GetOrgId();
+        var projectIds = GetInstanceProjectIds();
+
+        var result = await Task.Run(() => client.Secrets.Create(orgId, key, value, note, projectIds));
+
+        _logger.LogInformation("Bitwarden instance secret created: key={Key}, id={Id}, project={Project}",
+            key, result.Id, Options.InstanceProjectId);
+        return result.Id.ToString();
+    }
+
+    public async Task<BitwardenSecret> GetSecretAsync(string secretId)
+    {
+        var client = await GetClientAsync();
+        var result = await Task.Run(() => client.Secrets.Get(Guid.Parse(secretId)));
+
+        return new BitwardenSecret
+        {
+            Id           = result.Id.ToString(),
+            Key          = result.Key,
+            Value        = result.Value,
+            Note         = result.Note ?? string.Empty,
+            CreationDate = result.CreationDate.DateTime
+        };
+    }
+
+    public async Task UpdateSecretAsync(string secretId, string key, string value, string note = "")
+    {
+        var client     = await GetClientAsync();
+        var orgId      = GetOrgId();
+        var projectIds = GetProjectIds();
+
+        await Task.Run(() => client.Secrets.Update(orgId, Guid.Parse(secretId), key, value, note, projectIds));
+
+        _logger.LogInformation("Bitwarden secret updated: key={Key}, id={Id}", key, secretId);
+    }
+
+    public async Task UpdateInstanceSecretAsync(string secretId, string key, string value, string note = "")
+    {
+        var client     = await GetClientAsync();
+        var orgId      = GetOrgId();
+        var projectIds = GetInstanceProjectIds();
+
+        await Task.Run(() => client.Secrets.Update(orgId, Guid.Parse(secretId), key, value, note, projectIds));
+
+        _logger.LogInformation("Bitwarden instance secret updated: key={Key}, id={Id}, project={Project}",
+            key, secretId, Options.InstanceProjectId);
+    }
+
+    public async Task<List<BitwardenSecretSummary>> ListSecretsAsync()
+    {
+        var client = await GetClientAsync();
+        var orgId  = GetOrgId();
+        var result = await Task.Run(() => client.Secrets.List(orgId));
+
+        return result.Data?.Select(s => new BitwardenSecretSummary
+        {
+            Id           = s.Id.ToString(),
+            Key          = s.Key,
+            CreationDate = DateTime.MinValue
+        }).ToList() ?? new List<BitwardenSecretSummary>();
+    }
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // SDK client initialisation
+    // ─────────────────────────────────────────────────────────────────────────
+
+    /// <summary>
+    /// Returns an authenticated <see cref="BitwardenClient"/>, creating and logging in on first use.
+    /// </summary>
+    private async Task<BitwardenClient> GetClientAsync()
+    {
+        var opts = Options;
+
+        // If credentials changed since the client was created, tear it down so we re-auth
+        if (_client is not null && _clientAccessToken != opts.AccessToken)
+        {
+            _logger.LogInformation("Bitwarden credentials changed — recreating SDK client");
+            _client.Dispose();
+            _client = null;
+        }
+
+        if (_client is not null)
+            return _client;
+
+        if (string.IsNullOrWhiteSpace(opts.AccessToken))
+            throw new InvalidOperationException("Bitwarden AccessToken is not configured. Set it in Settings → Bitwarden.");
+
+        var accessToken = opts.AccessToken;
+        var apiUrl      = (opts.ApiUrl ?? "https://api.bitwarden.com").TrimEnd('/');
+        var identityUrl = (opts.IdentityUrl ?? "https://identity.bitwarden.com").TrimEnd('/');
+
+        var sdkSettings = new BitwardenSettings { ApiUrl = apiUrl, IdentityUrl = identityUrl };
+        var client      = new BitwardenClient(sdkSettings);
+
+        await Task.Run(() => client.Auth.LoginAccessToken(accessToken, GetStateFilePath()));
+
+        _logger.LogInformation("Bitwarden SDK client initialised and authenticated.");
+        _client = client;
+        _clientAccessToken = accessToken;
+        return _client;
+    }
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // Helpers
+    // ─────────────────────────────────────────────────────────────────────────
+
+    private Guid GetOrgId()
+    {
+        var orgId = Options.OrganizationId;
+        if (string.IsNullOrWhiteSpace(orgId))
+            throw new InvalidOperationException("Bitwarden OrganizationId is not configured.");
+        return Guid.Parse(orgId);
+    }
+
+    private Guid[] GetProjectIds()
+    {
+        var projectId = Options.ProjectId;
+        if (string.IsNullOrWhiteSpace(projectId))
+            throw new InvalidOperationException(
+                "Bitwarden ProjectId is required. Set it in Settings → Bitwarden.");
+        return new[] { Guid.Parse(projectId) };
+    }
+
+    /// <summary>
+    /// Returns the project IDs array for instance-level secrets.
+    /// Uses <see cref="BitwardenOptions.InstanceProjectId"/> when configured,
+    /// otherwise falls back to the default <see cref="BitwardenOptions.ProjectId"/>.
+    /// </summary>
+    private Guid[] GetInstanceProjectIds()
+    {
+        var instanceProjectId = Options.InstanceProjectId;
+        if (!string.IsNullOrWhiteSpace(instanceProjectId))
+        {
+            _logger.LogDebug("Using instance Bitwarden project: {ProjectId}", instanceProjectId);
+            return new[] { Guid.Parse(instanceProjectId) };
+        }
+
+        // Fall back to the default config project
+        return GetProjectIds();
+    }
+
+    /// <summary>
+    /// Returns the path where the SDK stores its state between sessions.
+    /// Stored under %APPDATA%/OTSSignsOrchestrator/bitwarden.state.
+    /// </summary>
+    private static string GetStateFilePath()
+    {
+        var dir = Path.Combine(
+            Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData),
+            "OTSSignsOrchestrator");
+        Directory.CreateDirectory(dir);
+        return Path.Combine(dir, "bitwarden.state");
+    }
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // IDisposable
+    // ─────────────────────────────────────────────────────────────────────────
+
+    public void Dispose()
+    {
+        if (!_disposed)
+        {
+            _client?.Dispose();
+            _disposed = true;
+        }
+    }
+}

OTSSignsOrchestrator.Core/Services/ComposeRenderService.cs

@@ -7,7 +7,6 @@ namespace OTSSignsOrchestrator.Core.Services;
 /// Renders a Docker Compose file by loading a template from the git repo and substituting
 /// all {{PLACEHOLDER}} tokens with values from RenderContext.
 /// The template file expected in the repo is <c>template.yml</c>.
-/// Call <see cref="GetTemplateYaml"/> to obtain the canonical template to commit to your repo.
 /// </summary>
 public class ComposeRenderService
 {
@@ -111,7 +110,10 @@ public class ComposeRenderService
         var export = (ctx.NfsExport ?? string.Empty).Trim('/');
         var folder = (ctx.NfsExportFolder ?? string.Empty).Trim('/');
         var path = string.IsNullOrEmpty(folder) ? export : $"{export}/{folder}";
-        return $":/{path}";
+        // When path is empty the prefix must be ":" with no trailing slash — the template
+        // already supplies the leading "/" before {{ABBREV}}, so ":" + "/ots/..." = ":/ots/..."
+        // (correct). Returning ":/" would produce "://ots/..." which Docker rejects.
+        return string.IsNullOrEmpty(path) ? ":" : $":/{path}";
     }
 
     /// <summary>
@@ -145,148 +147,6 @@ public class ComposeRenderService
         return folders;
     }
 
-    /// <summary>
-    /// Returns the canonical <c>template.yml</c> content with all placeholders.
-    /// Commit this file to the root of your template git repository.
-    /// </summary>
-    public static string GetTemplateYaml() => TemplateYaml;
-
-    // ── Canonical template ──────────────────────────────────────────────────
-
-    public const string TemplateYaml =
-        """
-        # Customer: {{CUSTOMER_NAME}}
-        version: "3.9"
-
-        services:
-
-          {{ABBREV}}-web:
-            image: {{CMS_IMAGE}}
-            environment:
-              CMS_USE_MEMCACHED: "true"
-              MEMCACHED_HOST: memcached
-              MYSQL_HOST: {{MYSQL_HOST}}
-              MYSQL_PORT: "{{MYSQL_PORT}}"
-              MYSQL_DATABASE: {{MYSQL_DATABASE}}
-              MYSQL_USER: {{MYSQL_USER}}
-              MYSQL_PASSWORD: {{MYSQL_PASSWORD}}
-              CMS_SERVER_NAME: {{CMS_SERVER_NAME}}
-              CMS_SMTP_SERVER: {{SMTP_SERVER}}
-              CMS_SMTP_USERNAME: {{SMTP_USERNAME}}
-              CMS_SMTP_PASSWORD: {{SMTP_PASSWORD}}
-              CMS_SMTP_USE_TLS: {{SMTP_USE_TLS}}
-              CMS_SMTP_USE_STARTTLS: {{SMTP_USE_STARTTLS}}
-              CMS_SMTP_REWRITE_DOMAIN: {{SMTP_REWRITE_DOMAIN}}
-              CMS_SMTP_HOSTNAME: {{SMTP_HOSTNAME}}
-              CMS_SMTP_FROM_LINE_OVERRIDE: {{SMTP_FROM_LINE_OVERRIDE}}
-              CMS_PHP_POST_MAX_SIZE: {{PHP_POST_MAX_SIZE}}
-              CMS_PHP_UPLOAD_MAX_FILESIZE: {{PHP_UPLOAD_MAX_FILESIZE}}
-              CMS_PHP_MAX_EXECUTION_TIME: "{{PHP_MAX_EXECUTION_TIME}}"
-            secrets:
-              - {{ABBREV}}-cms-db-user
-              - global_mysql_host
-              - global_mysql_port
-            volumes:
-              - {{ABBREV}}-cms-custom:/var/www/cms/custom
-              - {{ABBREV}}-cms-backup:/var/www/backup
-              - {{THEME_HOST_PATH}}:/var/www/cms/web/theme/custom
-              - {{ABBREV}}-cms-library:/var/www/cms/library
-              - {{ABBREV}}-cms-userscripts:/var/www/cms/web/userscripts
-              - {{ABBREV}}-cms-ca-certs:/var/www/cms/ca-certs
-            ports:
-              - "{{HOST_HTTP_PORT}}:80"
-            networks:
-              {{ABBREV}}-net:
-                aliases:
-                  - web
-            deploy:
-              restart_policy:
-                condition: any
-              resources:
-                limits:
-                  memory: 1G
-
-          {{ABBREV}}-memcached:
-            image: {{MEMCACHED_IMAGE}}
-            command: [memcached, -m, "15"]
-            networks:
-              {{ABBREV}}-net:
-                aliases:
-                  - memcached
-            deploy:
-              restart_policy:
-                condition: any
-              resources:
-                limits:
-                  memory: 100M
-
-          {{ABBREV}}-quickchart:
-            image: {{QUICKCHART_IMAGE}}
-            networks:
-              {{ABBREV}}-net:
-                aliases:
-                  - quickchart
-            deploy:
-              restart_policy:
-                condition: any
-
-          {{ABBREV}}-newt:
-            image: {{NEWT_IMAGE}}
-            environment:
-              PANGOLIN_ENDPOINT: {{PANGOLIN_ENDPOINT}}
-              NEWT_ID: {{NEWT_ID}}
-              NEWT_SECRET: {{NEWT_SECRET}}
-            networks:
-              {{ABBREV}}-net: {}
-            deploy:
-              restart_policy:
-                condition: any
-
-        networks:
-          {{ABBREV}}-net:
-            driver: overlay
-            attachable: "false"
-
-        volumes:
-          {{ABBREV}}-cms-custom:
-            driver: local
-            driver_opts:
-              type: nfs
-              device: "{{NFS_DEVICE_PREFIX}}/{{ABBREV}}/cms-custom"
-              o: "{{NFS_OPTS}}"
-          {{ABBREV}}-cms-backup:
-            driver: local
-            driver_opts:
-              type: nfs
-              device: "{{NFS_DEVICE_PREFIX}}/{{ABBREV}}/cms-backup"
-              o: "{{NFS_OPTS}}"
-          {{ABBREV}}-cms-library:
-            driver: local
-            driver_opts:
-              type: nfs
-              device: "{{NFS_DEVICE_PREFIX}}/{{ABBREV}}/cms-library"
-              o: "{{NFS_OPTS}}"
-          {{ABBREV}}-cms-userscripts:
-            driver: local
-            driver_opts:
-              type: nfs
-              device: "{{NFS_DEVICE_PREFIX}}/{{ABBREV}}/cms-userscripts"
-              o: "{{NFS_OPTS}}"
-          {{ABBREV}}-cms-ca-certs:
-            driver: local
-            driver_opts:
-              type: nfs
-              device: "{{NFS_DEVICE_PREFIX}}/{{ABBREV}}/cms-ca-certs"
-              o: "{{NFS_OPTS}}"
-
-        secrets:
-          {{ABBREV}}-cms-db-user:
-            external: true
-          global_mysql_host:
-            external: true
-          global_mysql_port:
-            external: true
-        """;
 }
 
 /// <summary>Context object with all inputs needed to render a Compose file.</summary>

OTSSignsOrchestrator.Core/Services/GitTemplateService.cs

@@ -49,14 +49,15 @@ public class GitTemplateService
         var yamlPath = FindFile(cacheDir, "template.yml");
 
         if (yamlPath == null)
-            throw new FileNotFoundException("template.yml not found in repository root. Commit the template file produced by ComposeRenderService.GetTemplateYaml() to the repo root.");
+            throw new FileNotFoundException("template.yml not found in repository root. Ensure template.yml is committed to the root of your template git repository.");
 
         var yaml = await File.ReadAllTextAsync(yamlPath);
 
         return new TemplateConfig
         {
             Yaml = yaml,
-            FetchedAt = DateTime.UtcNow
+            FetchedAt = DateTime.UtcNow,
+            CacheDir = cacheDir,
         };
     }
 

OTSSignsOrchestrator.Core/Services/IAuthentikService.cs

@@ -0,0 +1,126 @@
+using OTSSignsOrchestrator.Core.Models.DTOs;
+
+namespace OTSSignsOrchestrator.Core.Services;
+
+/// <summary>
+/// Provisions SAML applications in Authentik and retrieves IdP metadata
+/// needed to render the Xibo SAML settings-custom.php template.
+/// </summary>
+public interface IAuthentikService
+{
+    /// <summary>
+    /// Creates an Authentik SAML provider and application for the given Xibo instance,
+    /// then fetches the IdP metadata (entity ID, x509 cert, SSO/SLO URLs).
+    /// If the application already exists (by slug), returns its existing metadata.
+    /// </summary>
+    Task<AuthentikSamlConfig> ProvisionSamlAsync(
+        string instanceAbbrev,
+        string instanceBaseUrl,
+        CancellationToken ct = default);
+
+    /// <summary>
+    /// Tests the connection to Authentik by fetching the current user.
+    /// Optionally accepts override URL/key for testing before saving.
+    /// </summary>
+    Task<(bool Success, string Message)> TestConnectionAsync(
+        string? overrideUrl = null,
+        string? overrideApiKey = null,
+        CancellationToken ct = default);
+
+    /// <summary>
+    /// Returns all available flows from Authentik.
+    /// </summary>
+    Task<List<AuthentikFlowItem>> ListFlowsAsync(
+        string? overrideUrl = null,
+        string? overrideApiKey = null,
+        CancellationToken ct = default);
+
+    /// <summary>
+    /// Returns all certificate keypairs from Authentik.
+    /// </summary>
+    Task<List<AuthentikKeypairItem>> ListKeypairsAsync(
+        string? overrideUrl = null,
+        string? overrideApiKey = null,
+        CancellationToken ct = default);
+
+    /// <summary>
+    /// Returns all groups from Authentik, optionally filtered to those with
+    /// at least one member. Used for syncing groups to Xibo instances.
+    /// </summary>
+    Task<List<AuthentikGroupItem>> ListGroupsAsync(
+        string? overrideUrl = null,
+        string? overrideApiKey = null,
+        CancellationToken ct = default);
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // Customer invitation infrastructure
+    // ─────────────────────────────────────────────────────────────────────────
+
+    /// <summary>
+    /// Creates a group in Authentik with the given name.
+    /// Returns the group PK (UUID string). If a group with that name already exists, returns its PK.
+    /// </summary>
+    Task<string> CreateGroupAsync(string groupName, CancellationToken ct = default);
+
+    /// <summary>
+    /// Creates an invitation stage in Authentik.
+    /// Returns the stage PK. If a stage with that name already exists, returns its PK.
+    /// </summary>
+    Task<string> CreateInvitationStageAsync(string stageName, bool continueWithoutInvitation = false, CancellationToken ct = default);
+
+    /// <summary>
+    /// Creates an enrollment flow in Authentik with the given name and slug.
+    /// Returns the flow PK (UUID string). If a flow with that slug already exists, returns its PK.
+    /// </summary>
+    Task<string> CreateEnrollmentFlowAsync(string name, string slug, CancellationToken ct = default);
+
+    /// <summary>
+    /// Binds a stage to a flow at the specified order.
+    /// </summary>
+    Task BindStageToFlowAsync(string flowSlug, string stagePk, int order, CancellationToken ct = default);
+
+    /// <summary>
+    /// Creates an expression policy in Authentik.
+    /// Returns the policy PK. If a policy with that name already exists, returns its PK.
+    /// </summary>
+    Task<string> CreateExpressionPolicyAsync(string name, string expression, CancellationToken ct = default);
+
+    /// <summary>
+    /// Binds a policy to a flow stage binding (so it executes when that stage runs).
+    /// </summary>
+    Task BindPolicyToFlowStageBoundAsync(string flowStageBindingPk, string policyPk, CancellationToken ct = default);
+
+    /// <summary>
+    /// Binds a policy to a flow (policy/group/user binding tab).
+    /// </summary>
+    Task BindPolicyToFlowAsync(string flowSlug, string policyPk, CancellationToken ct = default);
+
+    /// <summary>
+    /// Creates a role in Authentik with the given name.
+    /// Returns the role PK. If a role with that name already exists, returns its PK.
+    /// </summary>
+    Task<string> CreateRoleAsync(string roleName, CancellationToken ct = default);
+
+    /// <summary>
+    /// Assigns a set of permissions to a role.
+    /// Permission codenames follow Django format, e.g. "add_invitation", "view_invitation".
+    /// </summary>
+    Task AssignPermissionsToRoleAsync(string rolePk, IEnumerable<string> permissionCodenames, CancellationToken ct = default);
+
+    /// <summary>
+    /// Assigns a role to a group so all members of the group inherit the role's permissions.
+    /// </summary>
+    Task AssignRoleToGroupAsync(string rolePk, string groupPk, CancellationToken ct = default);
+
+    /// <summary>
+    /// Finds the flow-stage binding PK for a specific stage bound to a flow at a given order.
+    /// Returns null if not found.
+    /// </summary>
+    Task<string?> GetFlowStageBindingPkAsync(string flowSlug, int order, CancellationToken ct = default);
+
+    /// <summary>
+    /// Looks up a built-in Authentik stage by partial name match (e.g. "default-enrollment-prompt").
+    /// Returns the stage PK, or null if not found.
+    /// </summary>
+    Task<string?> FindStageByNameAsync(string nameContains, CancellationToken ct = default);
+}

OTSSignsOrchestrator.Core/Services/IBitwardenSecretService.cs

@@ -0,0 +1,61 @@
+namespace OTSSignsOrchestrator.Core.Services;
+
+/// <summary>
+/// Abstraction for storing and retrieving secrets via Bitwarden Secrets Manager.
+/// </summary>
+public interface IBitwardenSecretService
+{
+    /// <summary>
+    /// Returns true if Bitwarden is configured (access token + org ID are set).
+    /// </summary>
+    Task<bool> IsConfiguredAsync();
+
+    /// <summary>
+    /// Creates a new secret in the configured Bitwarden project.
+    /// </summary>
+    /// <returns>The ID of the created secret.</returns>
+    Task<string> CreateSecretAsync(string key, string value, string note = "");
+
+    /// <summary>
+    /// Creates a new secret in the instance Bitwarden project (falls back to default project if not configured).
+    /// Use this for instance-level secrets such as DB passwords and Newt credentials.
+    /// </summary>
+    /// <returns>The ID of the created secret.</returns>
+    Task<string> CreateInstanceSecretAsync(string key, string value, string note = "");
+
+    /// <summary>
+    /// Retrieves a secret by its Bitwarden ID.
+    /// </summary>
+    Task<BitwardenSecret> GetSecretAsync(string secretId);
+
+    /// <summary>
+    /// Updates the value of an existing secret in place.
+    /// </summary>
+    Task UpdateSecretAsync(string secretId, string key, string value, string note = "");
+
+    /// <summary>
+    /// Updates the value of an existing instance-level secret in place (uses instance project if configured).
+    /// </summary>
+    Task UpdateInstanceSecretAsync(string secretId, string key, string value, string note = "");
+
+    /// <summary>
+    /// Lists all secrets in the configured project.
+    /// </summary>
+    Task<List<BitwardenSecretSummary>> ListSecretsAsync();
+}
+
+public class BitwardenSecret
+{
+    public string Id { get; set; } = string.Empty;
+    public string Key { get; set; } = string.Empty;
+    public string Value { get; set; } = string.Empty;
+    public string Note { get; set; } = string.Empty;
+    public DateTime CreationDate { get; set; }
+}
+
+public class BitwardenSecretSummary
+{
+    public string Id { get; set; } = string.Empty;
+    public string Key { get; set; } = string.Empty;
+    public DateTime CreationDate { get; set; }
+}

OTSSignsOrchestrator.Core/Services/IDockerCliService.cs

@@ -3,6 +3,9 @@ using OTSSignsOrchestrator.Core.Models.DTOs;
 
 namespace OTSSignsOrchestrator.Core.Services;
 
+// Re-export for convenience so consumers only need one using
+using ServiceLogEntry = OTSSignsOrchestrator.Core.Models.DTOs.ServiceLogEntry;
+
 /// <summary>
 /// Abstraction for Docker CLI stack operations (deploy, remove, list, inspect).
 /// Implementations may use local docker CLI or SSH-based remote execution.
@@ -87,6 +90,29 @@ public interface IDockerCliService
     /// <paramref name="oldSecretName"/> when null, keeping the same /run/secrets/ filename).
     /// </summary>
     Task<bool> ServiceSwapSecretAsync(string serviceName, string oldSecretName, string newSecretName, string? targetAlias = null);
+
+    /// <summary>
+    /// Fetches the last <paramref name="tailLines"/> log lines from a Docker Swarm service.
+    /// If <paramref name="serviceName"/> is null, fetches logs from all services in the stack.
+    /// Returns parsed log entries sorted by timestamp ascending.
+    /// </summary>
+    Task<List<ServiceLogEntry>> GetServiceLogsAsync(string stackName, string? serviceName = null, int tailLines = 200);
+
+    /// <summary>
+    /// Writes a file to an NFS volume by temporarily mounting the export on the Docker host.
+    /// Used to deploy configuration files (e.g. settings-custom.php) into CMS containers.
+    /// </summary>
+    /// <param name="nfsServer">NFS server hostname or IP.</param>
+    /// <param name="nfsExport">NFS export path (e.g. "/srv/nfs").</param>
+    /// <param name="relativePath">Path relative to the export root (e.g. "subfolder/abbrev/cms-custom/settings-custom.php").</param>
+    /// <param name="content">File content to write.</param>
+    /// <param name="nfsExportFolder">Optional subfolder within the export.</param>
+    Task<(bool Success, string? Error)> WriteFileToNfsAsync(
+        string nfsServer,
+        string nfsExport,
+        string relativePath,
+        string content,
+        string? nfsExportFolder = null);
 }
 
 public class StackInfo

OTSSignsOrchestrator.Core/Services/IInvitationSetupService.cs

@@ -0,0 +1,57 @@
+namespace OTSSignsOrchestrator.Core.Services;
+
+/// <summary>
+/// Orchestrates the complete Authentik invitation infrastructure setup for a customer.
+/// Creates a group, enrollment flow with stages, role with invitation permissions,
+/// and scoping policies so the customer admin can invite new users without OTS involvement.
+/// </summary>
+public interface IInvitationSetupService
+{
+    /// <summary>
+    /// Sets up the full invitation infrastructure for a customer in Authentik:
+    /// <list type="number">
+    ///   <item>Create customer group (e.g. <c>customer-acme</c>).</item>
+    ///   <item>Create invitation stage (invite-only, no anonymous enrollment).</item>
+    ///   <item>Create enrollment flow with stages: Invitation → Prompt → UserWrite → UserLogin.</item>
+    ///   <item>Bind expression policy to UserWrite stage to auto-assign users to the customer group.</item>
+    ///   <item>Create invite-manager role with invitation CRUD permissions.</item>
+    ///   <item>Assign role to customer group and bind scoping policy to flow.</item>
+    /// </list>
+    /// All operations are idempotent — safe to call multiple times for the same customer.
+    /// </summary>
+    /// <param name="customerAbbrev">Short customer identifier (e.g. "acme").</param>
+    /// <param name="customerName">Human-readable customer name (e.g. "Acme Corp").</param>
+    /// <param name="ct">Cancellation token.</param>
+    /// <returns>Result describing what was created and the enrollment flow URL.</returns>
+    Task<InvitationSetupResult> SetupCustomerInvitationAsync(
+        string customerAbbrev,
+        string customerName,
+        CancellationToken ct = default);
+}
+
+/// <summary>
+/// Result of the invitation infrastructure setup.
+/// </summary>
+public class InvitationSetupResult
+{
+    /// <summary>Whether the setup completed successfully.</summary>
+    public bool Success { get; set; }
+
+    /// <summary>Human-readable status message.</summary>
+    public string Message { get; set; } = string.Empty;
+
+    /// <summary>Name of the customer group created in Authentik.</summary>
+    public string GroupName { get; set; } = string.Empty;
+
+    /// <summary>Slug of the enrollment flow (used in invite links).</summary>
+    public string EnrollmentFlowSlug { get; set; } = string.Empty;
+
+    /// <summary>Name of the role created for invitation management.</summary>
+    public string RoleName { get; set; } = string.Empty;
+
+    /// <summary>
+    /// Full URL to the Authentik user portal where the customer admin
+    /// can manage invitations.
+    /// </summary>
+    public string? InvitationManagementUrl { get; set; }
+}

OTSSignsOrchestrator.Core/Services/InstanceService.cs

@@ -32,6 +32,7 @@ public class InstanceService
     private readonly IDockerSecretsService _secrets;
     private readonly XiboApiService _xibo;
     private readonly SettingsService _settings;
+    private readonly PostInstanceInitService _postInit;
     private readonly DockerOptions _dockerOptions;
     private readonly ILogger<InstanceService> _logger;
 
@@ -44,6 +45,7 @@ public class InstanceService
         IDockerSecretsService secrets,
         XiboApiService xibo,
         SettingsService settings,
+        PostInstanceInitService postInit,
         IOptions<DockerOptions> dockerOptions,
         ILogger<InstanceService> logger)
     {
@@ -55,6 +57,7 @@ public class InstanceService
         _secrets = secrets;
         _xibo = xibo;
         _settings = settings;
+        _postInit = postInit;
         _dockerOptions = dockerOptions.Value;
         _logger = logger;
     }
@@ -96,10 +99,22 @@ public class InstanceService
             _logger.LogInformation("Fetching template repo: {RepoUrl}", repoUrl);
             var templateConfig = await _git.FetchAsync(repoUrl, repoPat);
 
-            // ── 1b. Remove any stale stack that might hold references to old secrets ─
-            _logger.LogInformation("Removing stale stack (if any): {StackName}", stackName);
-            await _docker.RemoveStackAsync(stackName);
-            await Task.Delay(2000);
+            // ── 1b. Remove stale stack (and optionally its cached volumes) ─────
+            // docker stack rm alone leaves named volumes behind; those volumes
+            // retain their old driver_opts and Docker re-uses them on the next
+            // deploy, ignoring the new (correct) options in the compose file.
+            // PurgeStaleVolumes must be explicitly opted into to avoid accidental data loss.
+            if (dto.PurgeStaleVolumes)
+            {
+                _logger.LogInformation("Purging stale stack and volumes (PurgeStaleVolumes=true): {StackName}", stackName);
+                await _docker.RemoveStackVolumesAsync(stackName);
+            }
+            else
+            {
+                _logger.LogInformation("Removing stale stack (if any): {StackName}", stackName);
+                await _docker.RemoveStackAsync(stackName);
+                await Task.Delay(2000);
+            }
 
             // ── 2. Generate MySQL credentials ──────────────────────────────
             var mysqlPassword = GenerateRandomPassword(32);
@@ -126,12 +141,11 @@ public class InstanceService
                 throw new InvalidOperationException($"MySQL database/user setup failed: {mysqlMsg}");
             _logger.LogInformation("MySQL setup complete: {Message}", mysqlMsg);
 
-            // ── 2c. Persist password (encrypted) for future redeploys ────────
+            // ── 2c. Persist password for future redeploys ────────
             await _settings.SetAsync(
                 SettingsService.InstanceMySqlPassword(abbrev), mysqlPassword,
                 SettingsService.CatInstance, isSensitive: true);
-            await _db.SaveChangesAsync();
-            _logger.LogInformation("MySQL password stored in settings for instance {Abbrev}", abbrev);
+            _logger.LogInformation("MySQL password stored in Bitwarden for instance {Abbrev}", abbrev);
 
             // ── 3. Read settings ────────────────────────────────────────────
             var mySqlHost    = mySqlHostValue;
@@ -139,7 +153,7 @@ public class InstanceService
             var mySqlDbName  = (await _settings.GetAsync(SettingsService.DefaultMySqlDbTemplate, "{abbrev}_cms_db")).Replace("{abbrev}", abbrev);
             var mySqlUser    = mySqlUserName;
 
-            var cmsServerName = (await _settings.GetAsync(SettingsService.DefaultCmsServerNameTemplate, "{abbrev}.ots-signs.com")).Replace("{abbrev}", abbrev);
+            var cmsServerName = (await _settings.GetAsync(SettingsService.DefaultCmsServerNameTemplate, "app.ots-signs.com")).Replace("{abbrev}", abbrev);
             var themePath     = (await _settings.GetAsync(SettingsService.DefaultThemeHostPath, "/cms/ots-theme")).Replace("{abbrev}", abbrev);
 
             var smtpServer          = await _settings.GetAsync(SettingsService.SmtpServer, string.Empty);
@@ -235,11 +249,13 @@ public class InstanceService
                         + "(2) NFS export has root_squash enabled — set 'No mapping' / no_root_squash on the NFS server.");
             }
 
-            // ── 6. Remove stale NFS volumes ─────────────────────────────────
-            _logger.LogInformation("Removing stale NFS volumes for stack {StackName}", stackName);
-            await _docker.RemoveStackVolumesAsync(stackName);
+            // ── 5c. Write settings-custom.php to NFS volume (SAML config) ────────
+            // This must happen before the stack is deployed so Xibo starts with SAML
+            // authentication already configured.
+            var instanceUrlForSaml = $"https://{cmsServerName}/{abbrev}";
+            await _postInit.DeploySamlConfigurationAsync(abbrev, instanceUrlForSaml, _settings, dto.CustomerName);
 
-            // ── 7. Deploy stack ─────────────────────────────────────────────
+            // ── 6. Deploy stack ─────────────────────────────────────────────
             var deployResult = await _docker.DeployStackAsync(stackName, composeYaml);
             if (!deployResult.Success)
                 throw new InvalidOperationException($"Stack deployment failed: {deployResult.ErrorMessage}");
@@ -255,8 +271,15 @@ public class InstanceService
 
             _logger.LogInformation("Instance created: {StackName} | duration={DurationMs}ms", stackName, sw.ElapsedMilliseconds);
 
+            // ── 7. Return result — post-init will be triggered by the UI ──────
+            // after the user creates an OAuth2 app in the Xibo web UI and supplies
+            // the client_id and client_secret.
+            var instanceUrl = $"https://{cmsServerName}/{abbrev}";
+
+            deployResult.InstanceUrl  = instanceUrl;
+            deployResult.Abbrev       = abbrev;
             deployResult.ServiceCount = 4;
-            deployResult.Message      = "Instance deployed successfully.";
+            deployResult.Message      = "Instance deployed successfully. Complete post-install setup by providing OAuth credentials.";
             return deployResult;
         }
         catch (Exception ex)
@@ -324,7 +347,7 @@ public class InstanceService
             var pangolinEndpoint = await _settings.GetAsync(SettingsService.PangolinEndpoint, "https://app.pangolin.net");
 
             var cmsServerName = dto.CmsServerName
-                ?? (await _settings.GetAsync(SettingsService.DefaultCmsServerNameTemplate, "{abbrev}.ots-signs.com")).Replace("{abbrev}", abbrev);
+                ?? (await _settings.GetAsync(SettingsService.DefaultCmsServerNameTemplate, "app.ots-signs.com")).Replace("{abbrev}", abbrev);
             var hostHttpPort = dto.HostHttpPort ?? 80;
             var themePath    = dto.ThemeHostPath
                 ?? (await _settings.GetAsync(SettingsService.DefaultThemeHostPath, "/cms/ots-theme")).Replace("{abbrev}", abbrev);

OTSSignsOrchestrator.Core/Services/InvitationSetupService.cs

@@ -0,0 +1,230 @@
+using Microsoft.Extensions.Logging;
+
+namespace OTSSignsOrchestrator.Core.Services;
+
+/// <summary>
+/// Orchestrates the 6-step Authentik invitation infrastructure setup for a customer.
+/// All operations are idempotent — the underlying Authentik API methods check for
+/// existing resources before creating new ones.
+///
+/// Per customer, this creates:
+///   1. A group (<c>customer-{abbrev}</c>)
+///   2. An invitation stage (<c>{abbrev}-invitation-stage</c>)
+///   3. An enrollment flow (<c>{abbrev}-enrollment</c>) with stages bound in order
+///   4. An expression policy on the UserWrite stage to auto-assign users to the group
+///   5. A role (<c>{abbrev}-invite-manager</c>) with invitation CRUD permissions
+///   6. A scoping policy on the flow so only group members can access it
+/// </summary>
+public class InvitationSetupService : IInvitationSetupService
+{
+    private readonly IAuthentikService _authentik;
+    private readonly SettingsService _settings;
+    private readonly ILogger<InvitationSetupService> _logger;
+
+    public InvitationSetupService(
+        IAuthentikService authentik,
+        SettingsService settings,
+        ILogger<InvitationSetupService> logger)
+    {
+        _authentik = authentik;
+        _settings = settings;
+        _logger = logger;
+    }
+
+    /// <inheritdoc />
+    public async Task<InvitationSetupResult> SetupCustomerInvitationAsync(
+        string customerAbbrev,
+        string customerName,
+        CancellationToken ct = default)
+    {
+        var abbrev = customerAbbrev.Trim().ToLowerInvariant();
+        var groupName = $"customer-{abbrev}";
+        var flowSlug = $"{abbrev}-enrollment";
+        var flowName = $"{customerName} Enrollment";
+        var roleName = $"{abbrev}-invite-manager";
+        var invitationStageName = $"{abbrev}-invitation-stage";
+
+        _logger.LogInformation(
+            "[InviteSetup] Starting invitation infrastructure setup for customer '{Customer}' (abbrev={Abbrev})",
+            customerName, abbrev);
+
+        try
+        {
+            // ═══════════════════════════════════════════════════════════════════
+            // Step 1: Create customer group
+            // ═══════════════════════════════════════════════════════════════════
+            _logger.LogInformation("[InviteSetup] Step 1/6: Creating customer group '{Group}'", groupName);
+            var groupPk = await _authentik.CreateGroupAsync(groupName, ct);
+
+            // ═══════════════════════════════════════════════════════════════════
+            // Step 2: Create invitation stage
+            // ═══════════════════════════════════════════════════════════════════
+            _logger.LogInformation("[InviteSetup] Step 2/6: Creating invitation stage '{Stage}'", invitationStageName);
+            var invitationStagePk = await _authentik.CreateInvitationStageAsync(
+                invitationStageName, continueWithoutInvitation: false, ct);
+
+            // ═══════════════════════════════════════════════════════════════════
+            // Step 3: Create enrollment flow and bind stages
+            // ═══════════════════════════════════════════════════════════════════
+            _logger.LogInformation("[InviteSetup] Step 3/6: Creating enrollment flow '{Slug}'", flowSlug);
+            var flowPk = await _authentik.CreateEnrollmentFlowAsync(flowName, flowSlug, ct);
+
+            // Resolve built-in Authentik stages for the enrollment pipeline
+            var promptStagePk = await _authentik.FindStageByNameAsync("default-enrollment-prompt", ct);
+            var userWriteStagePk = await _authentik.FindStageByNameAsync("default-enrollment-user-write", ct);
+            var userLoginStagePk = await _authentik.FindStageByNameAsync("default-enrollment-user-login", ct);
+
+            // Bind stages in order: 10=Invitation, 20=Prompt, 30=UserWrite, 40=UserLogin
+            await _authentik.BindStageToFlowAsync(flowSlug, invitationStagePk, 10, ct);
+
+            if (promptStagePk != null)
+            {
+                await _authentik.BindStageToFlowAsync(flowSlug, promptStagePk, 20, ct);
+                _logger.LogInformation("[InviteSetup] Bound default prompt stage at order 20");
+            }
+            else
+            {
+                _logger.LogWarning("[InviteSetup] Built-in 'default-enrollment-prompt' stage not found — " +
+                                   "you may need to create a prompt stage manually and bind it to flow '{Slug}' at order 20", flowSlug);
+            }
+
+            if (userWriteStagePk != null)
+            {
+                await _authentik.BindStageToFlowAsync(flowSlug, userWriteStagePk, 30, ct);
+                _logger.LogInformation("[InviteSetup] Bound default user-write stage at order 30");
+            }
+            else
+            {
+                _logger.LogWarning("[InviteSetup] Built-in 'default-enrollment-user-write' stage not found — " +
+                                   "you may need to create a user-write stage manually and bind it to flow '{Slug}' at order 30", flowSlug);
+            }
+
+            if (userLoginStagePk != null)
+            {
+                await _authentik.BindStageToFlowAsync(flowSlug, userLoginStagePk, 40, ct);
+                _logger.LogInformation("[InviteSetup] Bound default user-login stage at order 40");
+            }
+            else
+            {
+                _logger.LogWarning("[InviteSetup] Built-in 'default-enrollment-user-login' stage not found — " +
+                                   "you may need to create a user-login stage manually and bind it to flow '{Slug}' at order 40", flowSlug);
+            }
+
+            // ═══════════════════════════════════════════════════════════════════
+            // Step 4: Create group-assignment policy and bind to UserWrite stage
+            // ═══════════════════════════════════════════════════════════════════
+            _logger.LogInformation("[InviteSetup] Step 4/6: Creating group-assignment expression policy");
+
+            var groupAssignPolicyName = $"{abbrev}-auto-assign-group";
+            var groupAssignExpression = $"""
+                from authentik.core.models import Group
+
+                # Auto-assign to customer group on registration
+                group = Group.objects.filter(name="{groupName}").first()
+                if group and context.get("pending_user"):
+                    context["pending_user"].ak_groups.add(group)
+
+                return True
+                """;
+
+            var groupAssignPolicyPk = await _authentik.CreateExpressionPolicyAsync(
+                groupAssignPolicyName, groupAssignExpression, ct);
+
+            // Bind policy to the UserWrite stage binding (order 30)
+            if (userWriteStagePk != null)
+            {
+                var userWriteBindingPk = await _authentik.GetFlowStageBindingPkAsync(flowSlug, 30, ct);
+                if (userWriteBindingPk != null)
+                {
+                    await _authentik.BindPolicyToFlowStageBoundAsync(userWriteBindingPk, groupAssignPolicyPk, ct);
+                    _logger.LogInformation("[InviteSetup] Group-assignment policy bound to UserWrite stage");
+                }
+                else
+                {
+                    _logger.LogWarning("[InviteSetup] Could not find flow-stage binding at order 30 to attach group policy");
+                }
+            }
+
+            // ═══════════════════════════════════════════════════════════════════
+            // Step 5: Create invite-manager role with permissions
+            // ═══════════════════════════════════════════════════════════════════
+            _logger.LogInformation("[InviteSetup] Step 5/6: Creating invite-manager role '{Role}'", roleName);
+            var rolePk = await _authentik.CreateRoleAsync(roleName, ct);
+
+            // Assign invitation CRUD permissions
+            var invitationPermissions = new[]
+            {
+                "add_invitation",
+                "view_invitation",
+                "delete_invitation",
+            };
+            await _authentik.AssignPermissionsToRoleAsync(rolePk, invitationPermissions, ct);
+
+            // Assign role to the customer group
+            await _authentik.AssignRoleToGroupAsync(rolePk, groupPk, ct);
+            _logger.LogInformation("[InviteSetup] Role '{Role}' assigned to group '{Group}'", roleName, groupName);
+
+            // ═══════════════════════════════════════════════════════════════════
+            // Step 6: Create scoping policy and bind to flow
+            // ═══════════════════════════════════════════════════════════════════
+            _logger.LogInformation("[InviteSetup] Step 6/6: Creating invitation scoping policy");
+
+            var scopePolicyName = $"scope-invitations-to-{abbrev}";
+            var scopeExpression = $"""
+                # Only allow users in {groupName} group to manage these invitations
+                user = context.get("pending_user") or request.user
+
+                if user.ak_groups.filter(name="{groupName}").exists():
+                    return True
+
+                return False
+                """;
+
+            var scopePolicyPk = await _authentik.CreateExpressionPolicyAsync(scopePolicyName, scopeExpression, ct);
+
+            // Bind scoping policy to the enrollment flow
+            await _authentik.BindPolicyToFlowAsync(flowSlug, scopePolicyPk, ct);
+            _logger.LogInformation("[InviteSetup] Scoping policy bound to enrollment flow");
+
+            // ═══════════════════════════════════════════════════════════════════
+            // Build result with management URL
+            // ═══════════════════════════════════════════════════════════════════
+            var authentikUrl = await _settings.GetAsync(SettingsService.AuthentikUrl);
+            var managementUrl = !string.IsNullOrWhiteSpace(authentikUrl)
+                ? $"{authentikUrl.TrimEnd('/')}/if/admin/#/core/invitations"
+                : null;
+
+            var result = new InvitationSetupResult
+            {
+                Success = true,
+                Message = $"Invitation infrastructure created for {customerName}. " +
+                          $"Group: {groupName}, Flow: {flowSlug}, Role: {roleName}.",
+                GroupName = groupName,
+                EnrollmentFlowSlug = flowSlug,
+                RoleName = roleName,
+                InvitationManagementUrl = managementUrl,
+            };
+
+            _logger.LogInformation(
+                "[InviteSetup] Setup complete for '{Customer}': group={Group}, flow={Flow}, role={Role}, url={Url}",
+                customerName, groupName, flowSlug, roleName, managementUrl ?? "(no URL)");
+
+            return result;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex,
+                "[InviteSetup] Invitation setup failed for '{Customer}' (abbrev={Abbrev}): {Message}",
+                customerName, abbrev, ex.Message);
+
+            return new InvitationSetupResult
+            {
+                Success = false,
+                Message = $"Invitation setup failed: {ex.Message}",
+                GroupName = groupName,
+                EnrollmentFlowSlug = flowSlug,
+                RoleName = roleName,
+            };
+        }
+    }
+}

OTSSignsOrchestrator.Core/Services/PostInstanceInitService.cs

@@ -0,0 +1,764 @@
+using System.Security.Cryptography;
+using System.Text.RegularExpressions;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging;
+using OTSSignsOrchestrator.Core.Configuration;
+
+namespace OTSSignsOrchestrator.Core.Services;
+
+/// <summary>
+/// Runs once after a Xibo CMS stack is deployed to complete post-install setup:
+/// <list type="number">
+///   <item>Waits for the Xibo web service to become available.</item>
+///   <item>Authenticates using the OAuth2 application credentials supplied by the user.</item>
+///   <item>Creates the OTS admin user with a random password.</item>
+///   <item>Registers a dedicated client_credentials OAuth2 application for OTS.</item>
+///   <item>Activates the <c>otssigns</c> theme.</item>
+///   <item>Stores all generated credentials in Bitwarden Secrets Manager.</item>
+///   <item>Deletes the default <c>xibo_admin</c> account.</item>
+/// </list>
+///
+/// The user must first create an OAuth2 application (client_credentials) in the
+/// Xibo web UI using the default <c>xibo_admin / password</c> account that ships
+/// with every new Xibo CMS instance.
+///
+/// Invoked from the Create Instance UI after the user supplies the OAuth credentials.
+/// Progress is tracked in the operation log; failures are logged but do not roll back the deployment.
+/// </summary>
+/// </summary>
+public class PostInstanceInitService
+{
+    private readonly IServiceProvider _services;
+    private readonly ILogger<PostInstanceInitService> _logger;
+
+    // How long to wait for Xibo to become healthy before aborting post-init.
+    private static readonly TimeSpan XiboReadinessTimeout = TimeSpan.FromMinutes(15);
+
+    public PostInstanceInitService(
+        IServiceProvider services,
+        ILogger<PostInstanceInitService> logger)
+    {
+        _services = services;
+        _logger   = logger;
+    }
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // Entry point
+    // ─────────────────────────────────────────────────────────────────────────
+
+    /// <summary>
+    /// Executes the post-instance initialisation sequence.
+    /// Called from the UI after the user supplies OAuth2 client credentials.
+    /// </summary>
+    public async Task RunAsync(
+        string abbrev,
+        string instanceUrl,
+        string clientId,
+        string clientSecret,
+        CancellationToken ct = default)
+    {
+        _logger.LogInformation("[PostInit] Starting post-instance init for {Abbrev} ({Url})", abbrev, instanceUrl);
+
+        try
+        {
+            using var scope      = _services.CreateScope();
+            var xibo             = scope.ServiceProvider.GetRequiredService<XiboApiService>();
+            var bws              = scope.ServiceProvider.GetRequiredService<IBitwardenSecretService>();
+            var settings         = scope.ServiceProvider.GetRequiredService<SettingsService>();
+
+            // ── 1. Wait for Xibo readiness ────────────────────────────────────
+            _logger.LogInformation("[PostInit] Waiting for Xibo to become ready at {Url}...", instanceUrl);
+            var ready = await xibo.WaitForReadyAsync(instanceUrl, XiboReadinessTimeout, ct);
+            if (!ready)
+                throw new TimeoutException(
+                    $"Xibo instance at {instanceUrl} did not become ready within {XiboReadinessTimeout.TotalMinutes} minutes.");
+
+            // ── 2. Authenticate with user-supplied OAuth2 credentials ─────────
+            _logger.LogInformation("[PostInit] Obtaining access token via client_credentials");
+            var accessToken = await xibo.LoginAsync(instanceUrl, clientId, clientSecret);
+
+            // ── 3. Generate credentials ───────────────────────────────────────
+            var adminUsername = $"ots-admin-{abbrev}";
+            var adminPassword = GeneratePassword(24);
+            var adminEmail    = $"ots-admin-{abbrev}@ots-signs.com";
+
+            // ── 4. Create OTS admin group ─────────────────────────────────────
+            var adminGroupName = $"ots-admins-{abbrev}";
+            _logger.LogInformation("[PostInit] Creating OTS admin group '{GroupName}'", adminGroupName);
+            var adminGroupId = await xibo.CreateUserGroupAsync(instanceUrl, accessToken, adminGroupName);
+
+            // ── 5. Create OTS admin user ──────────────────────────────────────
+            _logger.LogInformation("[PostInit] Creating OTS admin user '{Username}'", adminUsername);
+            int userId = await xibo.CreateAdminUserAsync(
+                instanceUrl, accessToken,
+                adminUsername, adminPassword, adminEmail, adminGroupId);
+
+            // ── 5a. Assign admin user to OTS admin group ──────────────────────
+            _logger.LogInformation("[PostInit] Assigning '{Username}' to group '{GroupName}'", adminUsername, adminGroupName);
+            await xibo.AssignUserToGroupAsync(instanceUrl, accessToken, adminGroupId, userId);
+
+            // ── 6. Register dedicated OAuth2 application for OTS ──────────────
+            _logger.LogInformation("[PostInit] Registering OTS OAuth2 application");
+            var (otsClientId, otsClientSecret) = await xibo.RegisterOAuthClientAsync(
+                instanceUrl, accessToken,
+                $"OTS Signs — {abbrev.ToUpperInvariant()}");
+
+            // ── 6. Set theme ──────────────────────────────────────────────────
+            _logger.LogInformation("[PostInit] Setting Xibo theme to 'otssigns'");
+            await xibo.SetThemeAsync(instanceUrl, accessToken, "otssigns");
+
+            // ── 7. Store credentials in Bitwarden ─────────────────────────────
+            _logger.LogInformation("[PostInit] Storing credentials in Bitwarden");
+
+            var adminSecretId = await bws.CreateInstanceSecretAsync(
+                key:   $"{abbrev}/xibo-admin-password",
+                value: adminPassword,
+                note:  $"Xibo CMS admin password for instance {abbrev}. Username: {adminUsername}");
+
+            var oauthSecretId = await bws.CreateInstanceSecretAsync(
+                key:   $"{abbrev}/xibo-oauth-secret",
+                value: otsClientSecret,
+                note:  $"Xibo CMS OAuth2 client secret for OTS application. ClientId: {otsClientId}");
+
+            // Persist Bitwarden secret IDs + OAuth client ID as config settings
+            await settings.SetAsync(SettingsService.InstanceAdminPasswordSecretId(abbrev), adminSecretId,
+                SettingsService.CatInstance, isSensitive: false);
+            await settings.SetAsync(SettingsService.InstanceOAuthSecretId(abbrev), oauthSecretId,
+                SettingsService.CatInstance, isSensitive: false);
+            await settings.SetAsync(SettingsService.InstanceOAuthClientId(abbrev), otsClientId,
+                SettingsService.CatInstance, isSensitive: false);
+
+            // ── 8. Remove the default xibo_admin account ──────────────────────
+            _logger.LogInformation("[PostInit] Removing default xibo_admin user");
+            var xiboAdminId = await xibo.GetUserIdByNameAsync(instanceUrl, accessToken, "xibo_admin");
+            await xibo.DeleteUserAsync(instanceUrl, accessToken, xiboAdminId);
+            _logger.LogInformation("[PostInit] xibo_admin user removed (userId={UserId})", xiboAdminId);
+
+            _logger.LogInformation(
+                "[PostInit] Post-instance init complete for {Abbrev}. Admin user: {Username}, OAuth ClientId: {ClientId}",
+                abbrev, adminUsername, otsClientId);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "[PostInit] Post-instance init failed for {Abbrev}: {Message}", abbrev, ex.Message);
+            throw;   // Propagate to calling UI so the user sees the error
+        }
+    }
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // Initialise using caller-supplied OAuth credentials (no new app registration)
+    // ─────────────────────────────────────────────────────────────────────────
+
+    /// <summary>
+    /// Initialises a Xibo CMS instance using OAuth2 credentials supplied by the user.
+    /// Unlike <see cref="RunAsync"/>, this method does NOT register a new OAuth application;
+    /// instead it stores the caller-supplied credentials for future API operations.
+    /// Steps: wait → authenticate → create OTS admin → set theme → remove xibo_admin → store credentials.
+    /// </summary>
+    public async Task InitializeWithOAuthAsync(
+        string abbrev,
+        string instanceUrl,
+        string clientId,
+        string clientSecret,
+        CancellationToken ct = default)
+    {
+        _logger.LogInformation("[PostInit] Starting initialisation for {Abbrev} ({Url})", abbrev, instanceUrl);
+
+        try
+        {
+            using var scope  = _services.CreateScope();
+            var xibo         = scope.ServiceProvider.GetRequiredService<XiboApiService>();
+            var bws          = scope.ServiceProvider.GetRequiredService<IBitwardenSecretService>();
+            var settings     = scope.ServiceProvider.GetRequiredService<SettingsService>();
+
+            // ── 1. Wait for Xibo readiness ────────────────────────────────────
+            _logger.LogInformation("[PostInit] Waiting for Xibo at {Url}...", instanceUrl);
+            var ready = await xibo.WaitForReadyAsync(instanceUrl, XiboReadinessTimeout, ct);
+            if (!ready)
+                throw new TimeoutException(
+                    $"Xibo at {instanceUrl} did not become ready within {XiboReadinessTimeout.TotalMinutes} minutes.");
+
+            // ── 2. Authenticate with caller-supplied OAuth2 credentials ───────
+            _logger.LogInformation("[PostInit] Obtaining access token");
+            var accessToken = await xibo.LoginAsync(instanceUrl, clientId, clientSecret);
+
+            // ── 3. Generate OTS admin credentials ─────────────────────────────
+            var adminUsername = $"ots-admin-{abbrev}";
+            var adminPassword = GeneratePassword(24);
+            var adminEmail    = $"ots-admin-{abbrev}@ots-signs.com";
+
+            // ── 4. Rename built-in xibo_admin to OTS admin ───────────────────
+            _logger.LogInformation("[PostInit] Looking up xibo_admin user");
+            var xiboAdminId = await xibo.GetUserIdByNameAsync(instanceUrl, accessToken, "xibo_admin");
+            _logger.LogInformation("[PostInit] Updating xibo_admin (id={Id}) → '{Username}'", xiboAdminId, adminUsername);
+            await xibo.UpdateUserAsync(instanceUrl, accessToken, xiboAdminId, adminUsername, adminPassword, adminEmail);
+
+            // ── 5. Set theme ──────────────────────────────────────────────────
+            _logger.LogInformation("[PostInit] Setting theme to 'otssigns'");
+            await xibo.SetThemeAsync(instanceUrl, accessToken, "otssigns");
+
+            // ── 6. Store admin password in Bitwarden ──────────────────────────
+            _logger.LogInformation("[PostInit] Storing credentials in Bitwarden");
+            var adminSecretId = await bws.CreateInstanceSecretAsync(
+                key:   $"{abbrev}/xibo-admin-password",
+                value: adminPassword,
+                note:  $"Xibo CMS admin password for instance {abbrev}. Username: {adminUsername}");
+
+            await settings.SetAsync(SettingsService.InstanceAdminPasswordSecretId(abbrev), adminSecretId,
+                SettingsService.CatInstance, isSensitive: false);
+
+            // ── 7. Store caller-supplied OAuth credentials in Bitwarden ───────
+            var oauthSecretId = await bws.CreateInstanceSecretAsync(
+                key:   $"{abbrev}/xibo-oauth-secret",
+                value: clientSecret,
+                note:  $"Xibo CMS OAuth2 client secret for instance {abbrev}. ClientId: {clientId}");
+
+            await settings.SetAsync(SettingsService.InstanceOAuthSecretId(abbrev), oauthSecretId,
+                SettingsService.CatInstance, isSensitive: false);
+            await settings.SetAsync(SettingsService.InstanceOAuthClientId(abbrev), clientId,
+                SettingsService.CatInstance, isSensitive: false);
+            _logger.LogInformation("[PostInit] xibo_admin removed");
+
+            _logger.LogInformation("[PostInit] Initialisation complete for {Abbrev}", abbrev);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "[PostInit] Initialisation failed for {Abbrev}: {Message}", abbrev, ex.Message);
+            throw;
+        }
+    }
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // Credential rotation (called from the UI)
+    // ─────────────────────────────────────────────────────────────────────────
+
+    /// <summary>
+    /// Generates a new OTS admin password, updates it in Xibo, and rotates the Bitwarden secret.
+    /// </summary>
+    public async Task<string> RotateAdminPasswordAsync(string abbrev, string instanceUrl)
+    {
+        _logger.LogInformation("[PostInit] Rotating admin password for {Abbrev}", abbrev);
+
+        using var scope   = _services.CreateScope();
+        var xibo          = scope.ServiceProvider.GetRequiredService<XiboApiService>();
+        var bws           = scope.ServiceProvider.GetRequiredService<IBitwardenSecretService>();
+        var settings      = scope.ServiceProvider.GetRequiredService<SettingsService>();
+
+        var adminUsername  = $"ots-admin-{abbrev}";
+        var newPassword    = GeneratePassword(24);
+
+        // Log in using the stored OTS OAuth2 client credentials
+        var oauthClientId = await settings.GetAsync(SettingsService.InstanceOAuthClientId(abbrev));
+        var oauthSecretId = await settings.GetAsync(SettingsService.InstanceOAuthSecretId(abbrev));
+        if (string.IsNullOrWhiteSpace(oauthClientId) || string.IsNullOrWhiteSpace(oauthSecretId))
+            throw new InvalidOperationException(
+                $"No OAuth credentials found for instance '{abbrev}'. Was post-init completed?");
+
+        var oauthSecret   = await bws.GetSecretAsync(oauthSecretId);
+        var accessToken   = await xibo.LoginAsync(instanceUrl, oauthClientId, oauthSecret.Value);
+
+        // Look up the OTS admin user ID
+        var userId = await xibo.GetUserIdByNameAsync(instanceUrl, accessToken, adminUsername);
+
+        await xibo.RotateUserPasswordAsync(instanceUrl, accessToken, userId, newPassword);
+
+        // Update Bitwarden secret
+        var secretId = await settings.GetAsync(SettingsService.InstanceAdminPasswordSecretId(abbrev));
+        if (!string.IsNullOrWhiteSpace(secretId))
+        {
+            await bws.UpdateInstanceSecretAsync(secretId,
+                key:   $"{abbrev}/xibo-admin-password",
+                value: newPassword,
+                note:  $"Rotated on {DateTime.UtcNow:yyyy-MM-dd HH:mm} UTC. Username: {adminUsername}");
+        }
+        else
+        {
+            // Secret doesn't exist yet in Bitwarden — create it now
+            var newSecretId = await bws.CreateInstanceSecretAsync(
+                $"{abbrev}/xibo-admin-password", newPassword,
+                $"Rotated on {DateTime.UtcNow:yyyy-MM-dd HH:mm} UTC. Username: {adminUsername}");
+            await settings.SetAsync(SettingsService.InstanceAdminPasswordSecretId(abbrev), newSecretId,
+                SettingsService.CatInstance, isSensitive: false);
+        }
+
+        _logger.LogInformation("[PostInit] Admin password rotated for {Abbrev}", abbrev);
+        return newPassword;
+    }
+
+    /// <summary>
+    /// Returns the stored admin password for an instance from Bitwarden.
+    /// </summary>
+    public async Task<InstanceCredentials> GetCredentialsAsync(string abbrev)
+    {
+        using var scope  = _services.CreateScope();
+        var bws          = scope.ServiceProvider.GetRequiredService<IBitwardenSecretService>();
+        var settings     = scope.ServiceProvider.GetRequiredService<SettingsService>();
+
+        var adminUsername  = $"ots-admin-{abbrev}";
+        var oauthClientId  = await settings.GetAsync(SettingsService.InstanceOAuthClientId(abbrev));
+        string? adminPassword = null;
+        string? oauthClientSecret = null;
+
+        var adminSecretId = await settings.GetAsync(SettingsService.InstanceAdminPasswordSecretId(abbrev));
+        if (!string.IsNullOrWhiteSpace(adminSecretId))
+        {
+            try
+            {
+                var secret = await bws.GetSecretAsync(adminSecretId);
+                adminPassword = secret.Value;
+            }
+            catch (Exception ex)
+            {
+                _logger.LogWarning(ex, "Could not retrieve admin password from Bitwarden for {Abbrev}", abbrev);
+            }
+        }
+
+        var oauthSecretId = await settings.GetAsync(SettingsService.InstanceOAuthSecretId(abbrev));
+        if (!string.IsNullOrWhiteSpace(oauthSecretId))
+        {
+            try
+            {
+                var secret = await bws.GetSecretAsync(oauthSecretId);
+                oauthClientSecret = secret.Value;
+            }
+            catch (Exception ex)
+            {
+                _logger.LogWarning(ex, "Could not retrieve OAuth secret from Bitwarden for {Abbrev}", abbrev);
+            }
+        }
+
+        return new InstanceCredentials
+        {
+            AdminUsername     = adminUsername,
+            AdminPassword     = adminPassword,
+            OAuthClientId     = oauthClientId,
+            OAuthClientSecret = oauthClientSecret,
+        };
+    }
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // SAML configuration deployment
+    // ─────────────────────────────────────────────────────────────────────────
+
+    /// <summary>
+    /// Provisions a SAML application in Authentik, renders the settings-custom.php template,
+    /// and writes the rendered file to the instance's NFS-backed cms-custom volume.
+    /// The template is resolved from (a) the git repo cache, or (b) the local bundled
+    /// <c>templates/</c> directory shipped with the application.
+    /// Errors are logged but do not fail the overall deployment.
+    /// </summary>
+    public async Task DeploySamlConfigurationAsync(
+        string abbrev,
+        string instanceUrl,
+        SettingsService settings,
+        string? customerName = null,
+        CancellationToken ct = default)
+    {
+        try
+        {
+            _logger.LogInformation("[PostInit] Deploying SAML settings-custom.php for {Abbrev}", abbrev);
+
+            using var scope = _services.CreateScope();
+            var authentik   = scope.ServiceProvider.GetRequiredService<IAuthentikService>();
+            var git         = scope.ServiceProvider.GetRequiredService<GitTemplateService>();
+            var docker      = scope.ServiceProvider.GetRequiredService<IDockerCliService>();
+
+            // ── 1. Locate settings-custom.php.template ────────────────────────
+            string? templateContent = null;
+
+            // 1a. Try git repo cache first
+            var repoUrl = await settings.GetAsync(SettingsService.GitRepoUrl);
+            var repoPat = await settings.GetAsync(SettingsService.GitRepoPat);
+            if (!string.IsNullOrWhiteSpace(repoUrl))
+            {
+                try
+                {
+                    var templateConfig = await git.FetchAsync(repoUrl, repoPat);
+                    var gitPath = Path.Combine(templateConfig.CacheDir, "settings-custom.php.template");
+                    if (File.Exists(gitPath))
+                    {
+                        templateContent = await File.ReadAllTextAsync(gitPath, ct);
+                        _logger.LogInformation("[PostInit] Using template from git repo cache: {Path}", gitPath);
+                    }
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogWarning(ex, "[PostInit] Could not fetch template from git — trying local fallback");
+                }
+            }
+
+            // 1b. Fall back to local templates/ directory (bundled with app)
+            if (templateContent == null)
+            {
+                var candidates = new[]
+                {
+                    Path.Combine(AppContext.BaseDirectory, "templates", "settings-custom.php.template"),
+                    Path.Combine(Directory.GetCurrentDirectory(), "templates", "settings-custom.php.template"),
+                };
+
+                foreach (var candidate in candidates)
+                {
+                    if (File.Exists(candidate))
+                    {
+                        templateContent = await File.ReadAllTextAsync(candidate, ct);
+                        _logger.LogInformation("[PostInit] Using local template: {Path}", candidate);
+                        break;
+                    }
+                }
+            }
+
+            if (templateContent == null)
+            {
+                _logger.LogWarning(
+                    "[PostInit] settings-custom.php.template not found in git repo or local templates/ — skipping SAML deployment");
+                return;
+            }
+
+            // ── 2. Provision Authentik SAML application ───────────────────────
+            var samlBaseUrl = instanceUrl.TrimEnd('/') + "/saml";
+            Models.DTOs.AuthentikSamlConfig? samlConfig = null;
+            try
+            {
+                samlConfig = await authentik.ProvisionSamlAsync(abbrev, instanceUrl, ct);
+            }
+            catch (Exception ex)
+            {
+                _logger.LogWarning(ex,
+                    "[PostInit] Authentik provisioning failed for {Abbrev} — skipping SAML config deployment to avoid broken Xibo instance",
+                    abbrev);
+                return; // Do NOT write a settings-custom.php with empty IdP values — it will crash Xibo
+            }
+
+            // ── 3. Render template ────────────────────────────────────────────
+            var rendered = templateContent
+                .Replace("{{SAML_BASE_URL}}", samlBaseUrl)
+                .Replace("{{SAML_SP_ENTITY_ID}}", $"{samlBaseUrl}/metadata")
+                .Replace("{{AUTHENTIK_IDP_ENTITY_ID}}", samlConfig?.IdpEntityId ?? "")
+                .Replace("{{AUTHENTIK_SSO_URL}}", samlConfig?.SsoUrlRedirect ?? "")
+                .Replace("{{AUTHENTIK_SLO_URL}}", samlConfig?.SloUrlRedirect ?? "")
+                .Replace("{{AUTHENTIK_IDP_X509_CERT}}", samlConfig?.IdpX509Cert ?? "");
+
+            // ── 4. Write rendered file to NFS volume ──────────────────────────
+            var nfsServer       = await settings.GetAsync(SettingsService.NfsServer);
+            var nfsExport       = await settings.GetAsync(SettingsService.NfsExport);
+            var nfsExportFolder = await settings.GetAsync(SettingsService.NfsExportFolder);
+
+            if (string.IsNullOrWhiteSpace(nfsServer) || string.IsNullOrWhiteSpace(nfsExport))
+                throw new InvalidOperationException("NFS settings are not configured — cannot write SAML config to volume.");
+
+            // Path within the NFS export: {abbrev}/cms-custom/settings-custom.php
+            var nfsRelativePath = $"{abbrev}/cms-custom/settings-custom.php";
+
+            var (success, error) = await docker.WriteFileToNfsAsync(
+                nfsServer, nfsExport, nfsRelativePath, rendered, nfsExportFolder);
+
+            if (!success)
+                throw new InvalidOperationException($"Failed to write settings-custom.php to NFS: {error}");
+
+            _logger.LogInformation(
+                "[PostInit] SAML configuration deployed for {Abbrev}{ProviderInfo}",
+                abbrev,
+                samlConfig != null
+                    ? $" (Authentik provider={samlConfig.ProviderId})"
+                    : " (without Authentik — needs manual IdP config)");
+
+            // ── 5. Sync Authentik groups to Xibo ──────────────────────────────
+            // Pre-create Authentik groups as Xibo user groups so they're available
+            // immediately (before any user logs in via SSO).
+            await SyncGroupsFromAuthentikAsync(abbrev, instanceUrl, settings, ct);
+
+            // ── 6. Set up customer invitation infrastructure in Authentik ─────
+            // Creates a group, enrollment flow, invitation stage, role, and
+            // scoping policies so the customer admin can invite users directly.
+            await SetupCustomerInvitationInfrastructureAsync(abbrev, customerName, ct);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "[PostInit] SAML deployment failed for {Abbrev}: {Message}. " +
+                "Instance will continue without SAML — configure manually if needed.", abbrev, ex.Message);
+            // Don't rethrow — SAML failure should not block the rest of post-init
+        }
+    }
+
+    /// <summary>
+    /// Sets up the customer invitation infrastructure in Authentik (group, enrollment flow,
+    /// stages, role, and policies). Errors are logged but do not block other operations.
+    /// </summary>
+    private async Task SetupCustomerInvitationInfrastructureAsync(
+        string abbrev, string? customerName, CancellationToken ct)
+    {
+        try
+        {
+            using var scope = _services.CreateScope();
+            var invitationSetup = scope.ServiceProvider.GetRequiredService<IInvitationSetupService>();
+
+            var displayName = !string.IsNullOrWhiteSpace(customerName)
+                ? customerName
+                : abbrev.ToUpperInvariant();
+
+            _logger.LogInformation("[PostInit] Setting up invitation infrastructure for {Abbrev}", abbrev);
+            var result = await invitationSetup.SetupCustomerInvitationAsync(abbrev, displayName, ct);
+
+            if (result.Success)
+            {
+                _logger.LogInformation(
+                    "[PostInit] Invitation infrastructure ready for {Abbrev}: group={Group}, flow={Flow}, role={Role}",
+                    abbrev, result.GroupName, result.EnrollmentFlowSlug, result.RoleName);
+
+                if (!string.IsNullOrWhiteSpace(result.InvitationManagementUrl))
+                {
+                    _logger.LogInformation(
+                        "[PostInit] Customer admin invitation URL: {Url}", result.InvitationManagementUrl);
+                }
+            }
+            else
+            {
+                _logger.LogWarning("[PostInit] Invitation setup reported failure for {Abbrev}: {Message}",
+                    abbrev, result.Message);
+            }
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex,
+                "[PostInit] Invitation infrastructure setup failed for {Abbrev}: {Message}. " +
+                "Customer invitations can be configured manually in Authentik.", abbrev, ex.Message);
+            // Don't rethrow — invitation setup failure should not block post-init
+        }
+    }
+
+    /// <summary>
+    /// Fetches all groups from Authentik and creates matching user groups in the
+    /// specified Xibo instance, excluding any groups listed in the
+    /// "SamlGroupSyncExcludedGroups" setting (comma-separated group names).
+    /// Groups that already exist in Xibo are skipped.
+    /// This ensures that groups are available in Xibo for permission assignment
+    /// before any user logs in via SAML SSO.
+    /// </summary>
+    public async Task<int> SyncGroupsFromAuthentikAsync(
+        string abbrev,
+        string instanceUrl,
+        SettingsService settings,
+        CancellationToken ct = default)
+    {
+        var synced = 0;
+        try
+        {
+            _logger.LogInformation("[GroupSync] Syncing Authentik groups to Xibo for {Abbrev}", abbrev);
+
+            using var scope = _services.CreateScope();
+            var authentik   = scope.ServiceProvider.GetRequiredService<IAuthentikService>();
+            var xibo        = scope.ServiceProvider.GetRequiredService<XiboApiService>();
+
+            // ── 1. Fetch groups from Authentik ────────────────────────────────
+            var authentikGroups = await authentik.ListGroupsAsync(ct: ct);
+            if (authentikGroups.Count == 0)
+            {
+                _logger.LogInformation("[GroupSync] No groups found in Authentik — nothing to sync");
+                return 0;
+            }
+
+            _logger.LogInformation("[GroupSync] Found {Count} Authentik group(s) to sync", authentikGroups.Count);
+
+            // ── 1b. Read excluded groups from settings ────────────────────────
+            var excludedGroupsSetting = await settings.GetAsync("SamlGroupSyncExcludedGroups");
+            var excludedGroups = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
+            if (!string.IsNullOrWhiteSpace(excludedGroupsSetting))
+            {
+                var excluded = excludedGroupsSetting
+                    .Split(new[] { ',', ';' }, StringSplitOptions.RemoveEmptyEntries)
+                    .Select(g => g.Trim())
+                    .Where(g => !string.IsNullOrWhiteSpace(g));
+                foreach (var g in excluded)
+                {
+                    excludedGroups.Add(g);
+                }
+                _logger.LogInformation("[GroupSync] Excluded groups: {Groups}", string.Join(", ", excludedGroups));
+            }
+
+            // ── 2. Authenticate to Xibo ───────────────────────────────────────
+            var oauthClientId = await settings.GetAsync(SettingsService.InstanceOAuthClientId(abbrev));
+            var oauthSecretId = await settings.GetAsync(SettingsService.InstanceOAuthSecretId(abbrev));
+
+            if (string.IsNullOrWhiteSpace(oauthClientId) || string.IsNullOrWhiteSpace(oauthSecretId))
+            {
+                _logger.LogWarning("[GroupSync] No OAuth credentials for {Abbrev} — cannot sync groups", abbrev);
+                return 0;
+            }
+
+            var bws = scope.ServiceProvider.GetRequiredService<IBitwardenSecretService>();
+            var oauthSecret = await bws.GetSecretAsync(oauthSecretId);
+            var accessToken = await xibo.LoginAsync(instanceUrl, oauthClientId, oauthSecret.Value);
+
+            // ── 3. List existing Xibo groups ──────────────────────────────────
+            var existingGroups = await xibo.ListUserGroupsAsync(instanceUrl, accessToken);
+            var existingNames  = new HashSet<string>(
+                existingGroups.Select(g => g.Group),
+                StringComparer.OrdinalIgnoreCase);
+
+            // ── 4. Create missing groups in Xibo (excluding specified ones) ────
+            foreach (var group in authentikGroups)
+            {
+                // Skip excluded groups
+                if (excludedGroups.Contains(group.Name))
+                {
+                    _logger.LogInformation("[GroupSync] Skipping excluded group '{Name}'", group.Name);
+                    continue;
+                }
+
+                if (existingNames.Contains(group.Name))
+                {
+                    _logger.LogDebug("[GroupSync] Group '{Name}' already exists in Xibo", group.Name);
+                    continue;
+                }
+
+                try
+                {
+                    var groupId = await xibo.CreateUserGroupAsync(instanceUrl, accessToken, group.Name);
+                    _logger.LogInformation("[GroupSync] Created Xibo group '{Name}' (id={Id})", group.Name, groupId);
+                    synced++;
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogWarning(ex, "[GroupSync] Failed to create Xibo group '{Name}'", group.Name);
+                }
+            }
+
+            _logger.LogInformation("[GroupSync] Sync complete for {Abbrev}: {Synced} group(s) created", abbrev, synced);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "[GroupSync] Group sync failed for {Abbrev}: {Message}", abbrev, ex.Message);
+            // Don't rethrow — group sync failure should not block other operations
+        }
+
+        return synced;
+    }
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // Helpers
+    // ─────────────────────────────────────────────────────────────────────────
+
+    private static string GeneratePassword(int length)
+    {
+        const string chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!@#$%^&*";
+        return RandomNumberGenerator.GetString(chars, length);
+    }
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // Import existing instance secrets on startup
+    // ─────────────────────────────────────────────────────────────────────────
+
+    /// <summary>
+    /// Scans all Bitwarden secrets for existing instance-level credentials
+    /// (matching the <c>{abbrev}/xibo-admin-password</c> and <c>{abbrev}/xibo-oauth-secret</c>
+    /// naming convention) and imports their mappings into the config settings so
+    /// the app knows about them without a manual re-provisioning step.
+    /// Safe to call on every startup — existing mappings are never overwritten.
+    /// </summary>
+    public async Task ImportExistingInstanceSecretsAsync()
+    {
+        try
+        {
+            using var scope  = _services.CreateScope();
+            var bws          = scope.ServiceProvider.GetRequiredService<IBitwardenSecretService>();
+            var settings     = scope.ServiceProvider.GetRequiredService<SettingsService>();
+
+            if (!await bws.IsConfiguredAsync())
+            {
+                _logger.LogDebug("[Import] Bitwarden not configured — skipping instance secret import");
+                return;
+            }
+
+            var allSecrets = await bws.ListSecretsAsync();
+            var imported   = 0;
+
+            foreach (var summary in allSecrets)
+            {
+                // ── Admin password pattern: {abbrev}/xibo-admin-password ──
+                var adminMatch = Regex.Match(summary.Key, @"^([a-zA-Z0-9_-]+)/xibo-admin-password$");
+                if (adminMatch.Success)
+                {
+                    var abbrev   = adminMatch.Groups[1].Value;
+                    var existing = await settings.GetAsync(SettingsService.InstanceAdminPasswordSecretId(abbrev));
+                    if (string.IsNullOrWhiteSpace(existing))
+                    {
+                        await settings.SetAsync(
+                            SettingsService.InstanceAdminPasswordSecretId(abbrev),
+                            summary.Id, SettingsService.CatInstance);
+                        imported++;
+                        _logger.LogInformation(
+                            "[Import] Imported admin password secret for instance {Abbrev} (id={Id})",
+                            abbrev, summary.Id);
+                    }
+                    continue;
+                }
+
+                // ── OAuth secret pattern: {abbrev}/xibo-oauth-secret ──
+                var oauthMatch = Regex.Match(summary.Key, @"^([a-zA-Z0-9_-]+)/xibo-oauth-secret$");
+                if (oauthMatch.Success)
+                {
+                    var abbrev   = oauthMatch.Groups[1].Value;
+                    var existing = await settings.GetAsync(SettingsService.InstanceOAuthSecretId(abbrev));
+                    if (string.IsNullOrWhiteSpace(existing))
+                    {
+                        await settings.SetAsync(
+                            SettingsService.InstanceOAuthSecretId(abbrev),
+                            summary.Id, SettingsService.CatInstance);
+                        imported++;
+                        _logger.LogInformation(
+                            "[Import] Imported OAuth secret for instance {Abbrev} (id={Id})",
+                            abbrev, summary.Id);
+
+                        // Try to extract the OAuth client_id from the secret's Note field
+                        try
+                        {
+                            var full = await bws.GetSecretAsync(summary.Id);
+                            var cidMatch = Regex.Match(full.Note ?? "", @"ClientId:\s*(\S+)");
+                            if (cidMatch.Success)
+                            {
+                                var existingCid = await settings.GetAsync(
+                                    SettingsService.InstanceOAuthClientId(abbrev));
+                                if (string.IsNullOrWhiteSpace(existingCid))
+                                {
+                                    await settings.SetAsync(
+                                        SettingsService.InstanceOAuthClientId(abbrev),
+                                        cidMatch.Groups[1].Value, SettingsService.CatInstance);
+                                    _logger.LogInformation(
+                                        "[Import] Imported OAuth client ID for instance {Abbrev}", abbrev);
+                                }
+                            }
+                        }
+                        catch (Exception ex)
+                        {
+                            _logger.LogWarning(ex,
+                                "[Import] Could not fetch full OAuth secret for {Abbrev} to extract client ID",
+                                abbrev);
+                        }
+                    }
+                }
+            }
+
+            if (imported > 0)
+                _logger.LogInformation("[Import] Imported {Count} instance secret mapping(s) from Bitwarden", imported);
+            else
+                _logger.LogDebug("[Import] No new instance secrets to import");
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "[Import] Failed to import existing instance secrets from Bitwarden");
+        }
+    }
+}
+
+/// <summary>Snapshot of provisioned credentials for a CMS instance.</summary>
+public class InstanceCredentials
+{
+    public string  AdminUsername     { get; set; } = string.Empty;
+    public string? AdminPassword     { get; set; }
+    public string? OAuthClientId     { get; set; }
+    public string? OAuthClientSecret { get; set; }
+
+    public bool HasAdminPassword     => !string.IsNullOrWhiteSpace(AdminPassword);
+    public bool HasOAuthCredentials  => !string.IsNullOrWhiteSpace(OAuthClientId) &&
+                                        !string.IsNullOrWhiteSpace(OAuthClientSecret);
+}

OTSSignsOrchestrator.Core/Services/SettingsService.cs

@@ -1,21 +1,20 @@
-using Microsoft.AspNetCore.DataProtection;
-using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.Logging;
-using OTSSignsOrchestrator.Core.Data;
-using OTSSignsOrchestrator.Core.Models.Entities;
 
 namespace OTSSignsOrchestrator.Core.Services;
 
 /// <summary>
-/// Reads and writes typed application settings from the AppSetting table.
-/// Sensitive values are encrypted/decrypted transparently via DataProtection.
+/// Reads and writes application settings from Bitwarden Secrets Manager.
+/// Each setting is stored as a Bitwarden secret with key prefix "ots-config/".
+/// The secret's Note field stores metadata (category|isSensitive).
 /// </summary>
 public class SettingsService
 {
-    private readonly XiboContext _db;
-    private readonly IDataProtector _protector;
+    private readonly IBitwardenSecretService _bws;
     private readonly ILogger<SettingsService> _logger;
 
+    /// <summary>Prefix applied to all config secret keys in Bitwarden.</summary>
+    private const string KeyPrefix = "ots-config/";
+
     // ── Category constants ─────────────────────────────────────────────────
     public const string CatGit = "Git";
     public const string CatMySql = "MySql";
@@ -23,6 +22,7 @@ public class SettingsService
     public const string CatPangolin = "Pangolin";
     public const string CatNfs = "Nfs";
     public const string CatDefaults = "Defaults";
+    public const string CatAuthentik = "Authentik";
 
     // ── Key constants ──────────────────────────────────────────────────────
     // Git
@@ -68,87 +68,194 @@ public class SettingsService
     public const string DefaultPhpUploadMaxFilesize = "Defaults.PhpUploadMaxFilesize";
     public const string DefaultPhpMaxExecutionTime = "Defaults.PhpMaxExecutionTime";
 
+    // Xibo bootstrap OAuth2 credentials (one-time global setup for orchestrator API access)
+    public const string CatXibo = "Xibo";
+    public const string XiboBootstrapClientId     = "Xibo.BootstrapClientId";
+    public const string XiboBootstrapClientSecret = "Xibo.BootstrapClientSecret";
+
+    // Authentik (SAML IdP provisioning)
+    public const string AuthentikUrl                   = "Authentik.Url";
+    public const string AuthentikApiKey                = "Authentik.ApiKey";
+    public const string AuthentikAuthorizationFlowSlug = "Authentik.AuthorizationFlowSlug";
+    public const string AuthentikInvalidationFlowSlug  = "Authentik.InvalidationFlowSlug";
+    public const string AuthentikSigningKeypairId      = "Authentik.SigningKeypairId";
+
     // Instance-specific (keyed by abbreviation)
     /// <summary>
     /// Builds a per-instance settings key for the MySQL password.
-    /// Stored encrypted via DataProtection so it can be retrieved on update/redeploy.
     /// </summary>
-    public static string InstanceMySqlPassword(string abbrev) => $"Instance.{abbrev}.MySqlPassword";
+    public static string InstanceMySqlPassword(string abbrev)         => $"Instance.{abbrev}.MySqlPassword";
+    /// <summary>Bitwarden secret ID for the instance's OTS admin password.</summary>
+    public static string InstanceAdminPasswordSecretId(string abbrev) => $"Instance.{abbrev}.AdminPasswordBwsId";
+    /// <summary>Bitwarden secret ID for the instance's Xibo OAuth2 client secret.</summary>
+    public static string InstanceOAuthSecretId(string abbrev)         => $"Instance.{abbrev}.OAuthSecretBwsId";
+    /// <summary>Xibo OAuth2 client_id generated for this instance's OTS application.</summary>
+    public static string InstanceOAuthClientId(string abbrev)         => $"Instance.{abbrev}.OAuthClientId";
     public const string CatInstance = "Instance";
 
+    // ── In-memory cache of secrets (loaded on first access) ────────────────
+    // Maps Bitwarden secret key (with prefix) → (id, value)
+    // Static so the cache is shared across all transient SettingsService instances.
+    private static Dictionary<string, (string Id, string Value)>? s_cache;
+
     public SettingsService(
-        XiboContext db,
-        IDataProtectionProvider dataProtection,
+        IBitwardenSecretService bws,
         ILogger<SettingsService> logger)
     {
-        _db = db;
-        _protector = dataProtection.CreateProtector("OTSSignsOrchestrator.Settings");
+        _bws = bws;
         _logger = logger;
     }
 
-    /// <summary>Get a single setting value, decrypting if sensitive.</summary>
+    /// <summary>Get a single setting value from Bitwarden.</summary>
     public async Task<string?> GetAsync(string key)
     {
-        var setting = await _db.AppSettings.FindAsync(key);
-        if (setting == null) return null;
-        return setting.IsSensitive && setting.Value != null
-            ? Unprotect(setting.Value)
-            : setting.Value;
+        var cache = await EnsureCacheAsync();
+        var bwKey = KeyPrefix + key;
+        if (!cache.TryGetValue(bwKey, out var entry))
+            return null;
+        // Treat single-space sentinel as empty (used to work around SDK marshalling limitation)
+        return string.IsNullOrWhiteSpace(entry.Value) ? null : entry.Value;
     }
 
     /// <summary>Get a setting with a fallback default.</summary>
     public async Task<string> GetAsync(string key, string defaultValue)
         => await GetAsync(key) ?? defaultValue;
 
-    /// <summary>Set a single setting, encrypting if sensitive.</summary>
+    /// <summary>Set a single setting in Bitwarden (creates or updates).</summary>
     public async Task SetAsync(string key, string? value, string category, bool isSensitive = false)
     {
-        var setting = await _db.AppSettings.FindAsync(key);
-        if (setting == null)
-        {
-            setting = new AppSetting { Key = key, Category = category, IsSensitive = isSensitive };
-            _db.AppSettings.Add(setting);
-        }
+        var cache = await EnsureCacheAsync();
+        var bwKey = KeyPrefix + key;
+        var note  = $"{category}|{(isSensitive ? "sensitive" : "plain")}";
+        // Use a single space for empty/null values — the Bitwarden SDK native FFI
+        // cannot marshal empty strings reliably.
+        var safeValue = string.IsNullOrEmpty(value) ? " " : value;
 
-        setting.Value = isSensitive && value != null ? _protector.Protect(value) : value;
-        setting.IsSensitive = isSensitive;
-        setting.Category = category;
-        setting.UpdatedAt = DateTime.UtcNow;
+        if (cache.TryGetValue(bwKey, out var existing))
+        {
+            // Update existing secret
+            await _bws.UpdateSecretAsync(existing.Id, bwKey, safeValue, note);
+            cache[bwKey] = (existing.Id, safeValue);
+            s_cache = cache;
+        }
+        else if (!string.IsNullOrWhiteSpace(value))
+        {
+            // Only create new secrets when there is an actual value to store
+            var newId = await _bws.CreateSecretAsync(bwKey, safeValue, note);
+            cache[bwKey] = (newId, safeValue);
+            s_cache = cache;
+        }
     }
 
-    /// <summary>Save multiple settings in a single transaction.</summary>
+    /// <summary>Save multiple settings in a batch.</summary>
     public async Task SaveManyAsync(IEnumerable<(string Key, string? Value, string Category, bool IsSensitive)> settings)
     {
+        var count = 0;
+        var errors = new List<string>();
         foreach (var (key, value, category, isSensitive) in settings)
-            await SetAsync(key, value, category, isSensitive);
+        {
+            try
+            {
+                await SetAsync(key, value, category, isSensitive);
+                count++;
+            }
+            catch (Exception ex)
+            {
+                _logger.LogWarning(ex, "Failed to save setting {Key}", key);
+                errors.Add(key);
+            }
+        }
 
-        await _db.SaveChangesAsync();
-        _logger.LogInformation("Saved {Count} setting(s)",
-            settings is ICollection<(string, string?, string, bool)> c ? c.Count : -1);
+        _logger.LogInformation("Saved {Count} setting(s) to Bitwarden", count);
+
+        if (errors.Count > 0)
+            throw new AggregateException(
+                $"Failed to save {errors.Count} setting(s): {string.Join(", ", errors)}");
     }
 
-    /// <summary>Get all settings in a category (values decrypted).</summary>
+    /// <summary>Get all settings in a category (by examining cached keys).</summary>
     public async Task<Dictionary<string, string?>> GetCategoryAsync(string category)
     {
-        var settings = await _db.AppSettings
-            .Where(s => s.Category == category)
-            .ToListAsync();
+        var cache = await EnsureCacheAsync();
+        var prefix = KeyPrefix + category + ".";
+        var result = new Dictionary<string, string?>();
 
-        return settings.ToDictionary(
-            s => s.Key,
-            s => s.IsSensitive && s.Value != null ? Unprotect(s.Value) : s.Value);
+        foreach (var (bwKey, entry) in cache)
+        {
+            if (bwKey.StartsWith(prefix, StringComparison.OrdinalIgnoreCase))
+            {
+                // Strip the "ots-config/" prefix to return the original key
+                var originalKey = bwKey[KeyPrefix.Length..];
+                result[originalKey] = entry.Value;
+            }
+        }
+
+        return result;
     }
 
-    private string? Unprotect(string protectedValue)
+    /// <summary>
+    /// Invalidates the in-memory cache so next access re-fetches from Bitwarden.
+    /// </summary>
+    public void InvalidateCache() => s_cache = null;
+
+    /// <summary>
+    /// Pre-loads the settings cache from Bitwarden.
+    /// Call once at startup so settings are available immediately.
+    /// </summary>
+    public async Task PreloadCacheAsync()
     {
+        InvalidateCache();
+        await EnsureCacheAsync();
+    }
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // Cache management
+    // ─────────────────────────────────────────────────────────────────────────
+
+    private async Task<Dictionary<string, (string Id, string Value)>> EnsureCacheAsync()
+    {
+        if (s_cache is not null)
+            return s_cache;
+
+        var cache = new Dictionary<string, (string, string)>(StringComparer.OrdinalIgnoreCase);
+
+        // Skip loading if Bitwarden is not yet configured (normal on first run)
+        if (!await _bws.IsConfiguredAsync())
+        {
+            _logger.LogInformation("Bitwarden is not configured yet — settings will be available after setup");
+            s_cache = cache;
+            return s_cache;
+        }
+
         try
         {
-            return _protector.Unprotect(protectedValue);
+            // List all secrets, then fetch full value for those matching our prefix
+            var summaries = await _bws.ListSecretsAsync();
+            var configSecrets = summaries
+                .Where(s => s.Key.StartsWith(KeyPrefix, StringComparison.OrdinalIgnoreCase))
+                .ToList();
+
+            _logger.LogInformation("Loading {Count} config secrets from Bitwarden", configSecrets.Count);
+
+            foreach (var summary in configSecrets)
+            {
+                try
+                {
+                    var full = await _bws.GetSecretAsync(summary.Id);
+                    cache[full.Key] = (full.Id, full.Value);
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogWarning(ex, "Failed to load secret {Key} ({Id})", summary.Key, summary.Id);
+                }
+            }
         }
         catch (Exception ex)
         {
-            _logger.LogWarning(ex, "Failed to unprotect setting value — returning null");
-            return null;
+            _logger.LogError(ex, "Failed to load settings from Bitwarden — settings will be empty until Bitwarden is configured");
         }
+
+        s_cache = cache;
+        return s_cache;
     }
 }

OTSSignsOrchestrator.Core/Services/XiboApiService.cs

@@ -1,3 +1,7 @@
+using System.Net.Http.Headers;
+using System.Net.Http.Json;
+using System.Text.Json;
+using System.Text.Json.Serialization;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Options;
 using OTSSignsOrchestrator.Core.Configuration;
@@ -5,7 +9,13 @@ using OTSSignsOrchestrator.Core.Configuration;
 namespace OTSSignsOrchestrator.Core.Services;
 
 /// <summary>
-/// Tests connectivity to deployed Xibo CMS instances using OAuth2.
+/// Provides connectivity testing and administrative operations against deployed Xibo CMS instances.
+///
+/// Bootstrap flow:
+///   1. After a new instance is deployed, <see cref="PostInstanceInitService"/> calls
+///      <see cref="LoginAsync"/> with the default Xibo admin credentials to obtain a session cookie.
+///   2. Subsequent operations (create user, register OAuth2 app, set theme) authenticate
+///      using that session cookie — no pre-existing OAuth2 application is required.
 /// </summary>
 public class XiboApiService
 {
@@ -23,7 +33,11 @@ public class XiboApiService
         _logger = logger;
     }
 
-    public async Task<XiboTestResult> TestConnectionAsync(string instanceUrl, string username, string password)
+    // ─────────────────────────────────────────────────────────────────────────
+    // Connection test
+    // ─────────────────────────────────────────────────────────────────────────
+
+    public async Task<XiboTestResult> TestConnectionAsync(string instanceUrl, string clientId, string clientSecret)
     {
         _logger.LogInformation("Testing Xibo connection to {InstanceUrl}", instanceUrl);
 
@@ -32,43 +46,22 @@ public class XiboApiService
 
         try
         {
-            var baseUrl = instanceUrl.TrimEnd('/');
-            var tokenUrl = $"{baseUrl}/api/authorize/access_token";
-
-            var formContent = new FormUrlEncodedContent(new[]
-            {
-                new KeyValuePair<string, string>("grant_type", "client_credentials"),
-                new KeyValuePair<string, string>("client_id", username),
-                new KeyValuePair<string, string>("client_secret", password)
-            });
-
-            var response = await client.PostAsync(tokenUrl, formContent);
-
-            if (response.IsSuccessStatusCode)
-            {
-                _logger.LogInformation("Xibo connection test succeeded for {InstanceUrl}", instanceUrl);
-                return new XiboTestResult
-                {
-                    IsValid = true,
-                    Message = "Connected successfully.",
-                    HttpStatus = (int)response.StatusCode
-                };
-            }
-
-            _logger.LogWarning("Xibo connection test failed: {InstanceUrl} | status={StatusCode}",
-                instanceUrl, (int)response.StatusCode);
-
+            var token = await GetTokenAsync(instanceUrl, clientId, clientSecret, client);
+            _logger.LogInformation("Xibo connection test succeeded for {InstanceUrl}", instanceUrl);
             return new XiboTestResult
             {
-                IsValid = false,
-                Message = response.StatusCode switch
-                {
-                    System.Net.HttpStatusCode.Unauthorized => "Invalid Xibo credentials.",
-                    System.Net.HttpStatusCode.Forbidden => "User lacks API permissions.",
-                    System.Net.HttpStatusCode.ServiceUnavailable => "Xibo instance not ready.",
-                    _ => $"Unexpected response: {(int)response.StatusCode}"
-                },
-                HttpStatus = (int)response.StatusCode
+                IsValid   = true,
+                Message   = "Connected successfully.",
+                HttpStatus = 200
+            };
+        }
+        catch (XiboAuthException ex)
+        {
+            return new XiboTestResult
+            {
+                IsValid    = false,
+                Message    = ex.Message,
+                HttpStatus = ex.HttpStatus
             };
         }
         catch (TaskCanceledException)
@@ -80,11 +73,526 @@ public class XiboApiService
             return new XiboTestResult { IsValid = false, Message = $"Cannot reach Xibo instance: {ex.Message}" };
         }
     }
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // Session login
+    // ─────────────────────────────────────────────────────────────────────────
+
+    /// <summary>
+    /// Obtains a Bearer access token using the OAuth2 <c>client_credentials</c> grant.
+    /// The caller must have previously created an OAuth2 application in the Xibo CMS
+    /// admin UI and provide the resulting <paramref name="clientId"/> and
+    /// <paramref name="clientSecret"/>.
+    /// </summary>
+    public async Task<string> LoginAsync(string instanceUrl, string clientId, string clientSecret)
+    {
+        var baseUrl  = instanceUrl.TrimEnd('/');
+        var tokenUrl = $"{baseUrl}/api/authorize/access_token";
+        var client   = _httpClientFactory.CreateClient("XiboApi");
+        client.Timeout = TimeSpan.FromSeconds(30);
+
+        var form = new FormUrlEncodedContent(new[]
+        {
+            new KeyValuePair<string, string>("grant_type",    "client_credentials"),
+            new KeyValuePair<string, string>("client_id",     clientId),
+            new KeyValuePair<string, string>("client_secret", clientSecret),
+        });
+
+        var response = await client.PostAsync(tokenUrl, form);
+
+        if (!response.IsSuccessStatusCode)
+        {
+            var body = await response.Content.ReadAsStringAsync();
+            throw new XiboAuthException(
+                $"Xibo client_credentials login failed for client '{clientId}': HTTP {(int)response.StatusCode} — {body}",
+                (int)response.StatusCode);
+        }
+
+        using var doc   = await JsonDocument.ParseAsync(await response.Content.ReadAsStreamAsync());
+        var accessToken = doc.RootElement.GetProperty("access_token").GetString()
+                          ?? throw new InvalidOperationException("access_token missing in Xibo token response.");
+
+        _logger.LogInformation("Xibo access token obtained for client '{ClientId}' at {Url}", clientId, baseUrl);
+        return accessToken;
+    }
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // Health / readiness
+    // ─────────────────────────────────────────────────────────────────────────
+
+    /// <summary>
+    /// Polls <paramref name="instanceUrl"/> until Xibo is genuinely online by calling
+    /// the public <c>/about</c> page (no auth required) and confirming the response body
+    /// contains the word "Xibo". <paramref name="instanceUrl"/> must already include the
+    /// instance sub-path (e.g. <c>https://ots.ots-signs.com/ots</c>).
+    /// The JSON <c>/api/about</c> and <c>/api/clock</c> endpoints both require auth, so
+    /// the HTML about page is the only reliable unauthenticated Xibo-specific probe.
+    /// A plain 200 from a proxy is not sufficient — the body must contain "Xibo".
+    /// </summary>
+    public async Task<bool> WaitForReadyAsync(
+        string instanceUrl,
+        TimeSpan timeout,
+        CancellationToken ct = default)
+    {
+        var deadline  = DateTime.UtcNow + timeout;
+        var baseUrl   = instanceUrl.TrimEnd('/');
+        var client    = _httpClientFactory.CreateClient("XiboHealth");
+        client.Timeout = TimeSpan.FromSeconds(10);
+        var healthUrl = $"{baseUrl}/about";
+
+        _logger.LogInformation("Waiting for Xibo instance to become ready: {Url}", healthUrl);
+
+        while (DateTime.UtcNow < deadline && !ct.IsCancellationRequested)
+        {
+            try
+            {
+                var response = await client.GetAsync(healthUrl, ct);
+                if (response.IsSuccessStatusCode)
+                {
+                    // The public /about page always contains the word "Xibo" in its HTML
+                    // when Xibo itself is serving responses. A proxy 200 page will not.
+                    var body = await response.Content.ReadAsStringAsync(ct);
+                    if (body.Contains("Xibo", StringComparison.OrdinalIgnoreCase))
+                    {
+                        _logger.LogInformation("Xibo is ready: {Url}", healthUrl);
+                        return true;
+                    }
+                    _logger.LogDebug("About page returned 200 but body lacks 'Xibo' — proxy may be up but Xibo not yet ready");
+                }
+            }
+            catch { /* not yet available */ }
+
+            await Task.Delay(TimeSpan.FromSeconds(10), ct);
+        }
+
+        _logger.LogWarning("Xibo did not become ready within {Timeout}: {Url}", timeout, healthUrl);
+        return false;
+    }
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // Admin user
+    // ─────────────────────────────────────────────────────────────────────────
+
+    /// <summary>
+    /// Creates a new super-admin user in the Xibo instance and returns its numeric ID.
+    /// Authenticates using the supplied <paramref name="accessToken"/> (Bearer token
+    /// obtained from <see cref="LoginAsync"/>).
+    /// </summary>
+    public async Task<int> CreateAdminUserAsync(
+        string instanceUrl,
+        string accessToken,
+        string newUsername,
+        string newPassword,
+        string email,
+        int groupId)
+    {
+        var client  = _httpClientFactory.CreateClient("XiboApi");
+        var baseUrl = instanceUrl.TrimEnd('/');
+
+        SetBearer(client, accessToken);
+
+        var form = new FormUrlEncodedContent(new[]
+        {
+            new KeyValuePair<string, string>("userName",                 newUsername),
+            new KeyValuePair<string, string>("email",                    email),
+            new KeyValuePair<string, string>("userTypeId",               "1"),          // Super Admin
+            new KeyValuePair<string, string>("homePageId",               "icondashboard.view"),
+            new KeyValuePair<string, string>("libraryQuota",             "0"),
+            new KeyValuePair<string, string>("groupId",                  groupId.ToString()),
+            new KeyValuePair<string, string>("password",                 newPassword),
+            new KeyValuePair<string, string>("newUserWizard",            "0"),
+            new KeyValuePair<string, string>("hideNavigation",           "0"),
+            new KeyValuePair<string, string>("isPasswordChangeRequired", "0"),
+        });
+
+        var response = await client.PostAsync($"{baseUrl}/api/user", form);
+        await EnsureSuccessAsync(response, "create Xibo admin user");
+
+        using var doc   = await JsonDocument.ParseAsync(await response.Content.ReadAsStreamAsync());
+        var       userId = doc.RootElement.GetProperty("userId").GetInt32();
+
+        _logger.LogInformation("Xibo admin user created: username={Username}, userId={UserId}", newUsername, userId);
+        return userId;
+    }
+
+    /// <summary>
+    /// Changes the password of an existing Xibo user.
+    /// Authenticates using the supplied <paramref name="accessToken"/> (Bearer token
+    /// obtained from <see cref="LoginAsync"/>).
+    /// </summary>
+    public async Task RotateUserPasswordAsync(
+        string instanceUrl,
+        string accessToken,
+        int userId,
+        string newPassword)
+    {
+        var client  = _httpClientFactory.CreateClient("XiboApi");
+        var baseUrl = instanceUrl.TrimEnd('/');
+
+        SetBearer(client, accessToken);
+
+        var form = new FormUrlEncodedContent(new[]
+        {
+            new KeyValuePair<string, string>("newUserPassword",       newPassword),
+            new KeyValuePair<string, string>("retypeNewUserPassword", newPassword),
+        });
+
+        var response = await client.PutAsync($"{baseUrl}/api/user/{userId}", form);
+        await EnsureSuccessAsync(response, "rotate Xibo user password");
+
+        _logger.LogInformation("Xibo user password rotated: userId={UserId}", userId);
+    }
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // OAuth2 application
+    // ─────────────────────────────────────────────────────────────────────────
+
+    /// <summary>
+    /// Registers a new client_credentials OAuth2 application in Xibo and returns
+    /// the generated client_id and client_secret.
+    /// Authenticates using the supplied <paramref name="accessToken"/> (Bearer token
+    /// obtained from <see cref="LoginAsync"/>).
+    /// </summary>
+    public async Task<(string ClientId, string ClientSecret)> RegisterOAuthClientAsync(
+        string instanceUrl,
+        string accessToken,
+        string appName)
+    {
+        var client  = _httpClientFactory.CreateClient("XiboApi");
+        var baseUrl = instanceUrl.TrimEnd('/');
+
+        SetBearer(client, accessToken);
+
+        var form = new FormUrlEncodedContent(new[]
+        {
+            new KeyValuePair<string, string>("name",         appName),
+            new KeyValuePair<string, string>("clientId",     Guid.NewGuid().ToString("N")),
+            new KeyValuePair<string, string>("confidential", "1"),
+            new KeyValuePair<string, string>("authCode",     "0"),
+            new KeyValuePair<string, string>("clientCredentials", "1"),
+        });
+
+        var response = await client.PostAsync($"{baseUrl}/api/application", form);
+        await EnsureSuccessAsync(response, "register Xibo OAuth2 application");
+
+        using var doc    = await JsonDocument.ParseAsync(await response.Content.ReadAsStreamAsync());
+        var       root   = doc.RootElement;
+        var       cid    = root.GetProperty("key").GetString()
+                           ?? throw new InvalidOperationException("Xibo application 'key' missing in response.");
+        var       secret = root.GetProperty("secret").GetString()
+                           ?? throw new InvalidOperationException("Xibo application 'secret' missing in response.");
+
+        _logger.LogInformation("Xibo OAuth2 application registered: name={Name}, clientId={ClientId}", appName, cid);
+        return (cid, secret);
+    }
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // Theme
+    // ─────────────────────────────────────────────────────────────────────────
+
+    /// <summary>
+    /// Sets the active CMS theme by writing the THEME_FOLDER setting.
+    /// Authenticates using the supplied <paramref name="accessToken"/> (Bearer token
+    /// obtained from <see cref="LoginAsync"/>).
+    /// </summary>
+    public async Task SetThemeAsync(
+        string instanceUrl,
+        string accessToken,
+        string themeFolderName = "otssigns")
+    {
+        var client  = _httpClientFactory.CreateClient("XiboApi");
+        var baseUrl = instanceUrl.TrimEnd('/');
+
+        SetBearer(client, accessToken);
+
+        // Xibo stores settings as an array: settings[THEME_FOLDER]=otssigns
+        var form = new FormUrlEncodedContent(new[]
+        {
+            new KeyValuePair<string, string>("settings[THEME_FOLDER]", themeFolderName),
+        });
+
+        var response = await client.PostAsync($"{baseUrl}/api/admin/setting", form);
+        await EnsureSuccessAsync(response, "set Xibo theme");
+
+        _logger.LogInformation("Xibo theme set to: {Theme}", themeFolderName);
+    }
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // User groups
+    // ─────────────────────────────────────────────────────────────────────────
+
+    /// <summary>
+    /// Lists all user groups in the Xibo instance and returns their names and IDs.
+    /// </summary>
+    public async Task<List<XiboGroupInfo>> ListUserGroupsAsync(
+        string instanceUrl,
+        string accessToken)
+    {
+        var client  = _httpClientFactory.CreateClient("XiboApi");
+        var baseUrl = instanceUrl.TrimEnd('/');
+
+        SetBearer(client, accessToken);
+
+        var response = await client.GetAsync($"{baseUrl}/api/group");
+        await EnsureSuccessAsync(response, "list Xibo user groups");
+
+        using var doc = await JsonDocument.ParseAsync(await response.Content.ReadAsStreamAsync());
+        var groups = new List<XiboGroupInfo>();
+
+        foreach (var el in doc.RootElement.EnumerateArray())
+        {
+            groups.Add(new XiboGroupInfo
+            {
+                GroupId = el.GetProperty("groupId").GetInt32(),
+                Group   = el.GetProperty("group").GetString() ?? "",
+            });
+        }
+
+        return groups;
+    }
+
+    /// <summary>
+    /// Finds an existing Xibo group by name or creates it if it doesn't exist.
+    /// Returns the group ID.
+    /// </summary>
+    public async Task<int> GetOrCreateUserGroupAsync(
+        string instanceUrl,
+        string accessToken,
+        string groupName)
+    {
+        // Try to find existing group first
+        var existing = await ListUserGroupsAsync(instanceUrl, accessToken);
+        var match = existing.FirstOrDefault(g =>
+            string.Equals(g.Group, groupName, StringComparison.OrdinalIgnoreCase));
+
+        if (match != null)
+        {
+            _logger.LogDebug("Xibo group '{Name}' already exists (id={Id})", groupName, match.GroupId);
+            return match.GroupId;
+        }
+
+        // Create new group
+        return await CreateUserGroupAsync(instanceUrl, accessToken, groupName);
+    }
+
+    /// <summary>
+    /// Creates a new user group and returns its numeric group ID.
+    /// </summary>
+    public async Task<int> CreateUserGroupAsync(
+        string instanceUrl,
+        string accessToken,
+        string groupName)
+    {
+        var client  = _httpClientFactory.CreateClient("XiboApi");
+        var baseUrl = instanceUrl.TrimEnd('/');
+
+        SetBearer(client, accessToken);
+
+        var form = new FormUrlEncodedContent(new[]
+        {
+            new KeyValuePair<string, string>("group",         groupName),
+            new KeyValuePair<string, string>("libraryQuota",  "0"),
+        });
+
+        var response = await client.PostAsync($"{baseUrl}/api/group", form);
+        await EnsureSuccessAsync(response, "create Xibo user group");
+
+        // The response is an array containing the created group
+        using var doc = await JsonDocument.ParseAsync(await response.Content.ReadAsStreamAsync());
+        var root = doc.RootElement;
+        // Response may be an array or a single object depending on Xibo version
+        var groupEl = root.ValueKind == JsonValueKind.Array ? root[0] : root;
+        var gid = groupEl.GetProperty("groupId").GetInt32();
+
+        _logger.LogInformation("Xibo user group created: name={Name}, groupId={GroupId}", groupName, gid);
+        return gid;
+    }
+
+    /// <summary>
+    /// Assigns a user to a Xibo user group.
+    /// </summary>
+    public async Task AssignUserToGroupAsync(
+        string instanceUrl,
+        string accessToken,
+        int groupId,
+        int userId)
+    {
+        var client  = _httpClientFactory.CreateClient("XiboApi");
+        var baseUrl = instanceUrl.TrimEnd('/');
+
+        SetBearer(client, accessToken);
+
+        var form = new FormUrlEncodedContent(new[]
+        {
+            new KeyValuePair<string, string>("userId[]", userId.ToString()),
+        });
+
+        var response = await client.PostAsync($"{baseUrl}/api/group/members/assign/{groupId}", form);
+        await EnsureSuccessAsync(response, $"assign user {userId} to group {groupId}");
+
+        _logger.LogInformation("User {UserId} assigned to group {GroupId}", userId, groupId);
+    }
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // User lookup / update / deletion
+    // ─────────────────────────────────────────────────────────────────────────
+
+    /// <summary>
+    /// Updates an existing Xibo user's username, password, and email.
+    /// Authenticates using the supplied <paramref name="accessToken"/>.
+    /// </summary>
+    public async Task UpdateUserAsync(
+        string instanceUrl,
+        string accessToken,
+        int    userId,
+        string newUsername,
+        string newPassword,
+        string email)
+    {
+        var client  = _httpClientFactory.CreateClient("XiboApi");
+        var baseUrl = instanceUrl.TrimEnd('/');
+
+        SetBearer(client, accessToken);
+
+        var form = new FormUrlEncodedContent(new[]
+        {
+            new KeyValuePair<string, string>("userName",                 newUsername),
+            new KeyValuePair<string, string>("email",                    email),
+            new KeyValuePair<string, string>("userTypeId",               "1"),
+            new KeyValuePair<string, string>("homePageId",               "icondashboard.view"),
+            new KeyValuePair<string, string>("libraryQuota",             "0"),
+            new KeyValuePair<string, string>("newPassword",              newPassword),
+            new KeyValuePair<string, string>("retypeNewPassword",        newPassword),
+            new KeyValuePair<string, string>("newUserWizard",            "0"),
+            new KeyValuePair<string, string>("hideNavigation",           "0"),
+            new KeyValuePair<string, string>("isPasswordChangeRequired", "0"),
+        });
+
+        var response = await client.PutAsync($"{baseUrl}/api/user/{userId}", form);
+        await EnsureSuccessAsync(response, $"update Xibo user {userId}");
+
+        _logger.LogInformation("Xibo user updated: userId={UserId}, newUsername={Username}", userId, newUsername);
+    }
+
+    /// <summary>
+    /// Finds a Xibo user by username and returns their numeric user ID.
+    /// Authenticates using the supplied <paramref name="accessToken"/>.
+    /// </summary>
+    public async Task<int> GetUserIdByNameAsync(string instanceUrl, string accessToken, string username)
+    {
+        var client  = _httpClientFactory.CreateClient("XiboApi");
+        var baseUrl = instanceUrl.TrimEnd('/');
+
+        SetBearer(client, accessToken);
+
+        var response = await client.GetAsync($"{baseUrl}/api/user?userName={Uri.EscapeDataString(username)}");
+        await EnsureSuccessAsync(response, "look up Xibo user by name");
+
+        using var doc = await JsonDocument.ParseAsync(await response.Content.ReadAsStreamAsync());
+        foreach (var user in doc.RootElement.EnumerateArray())
+        {
+            var name = user.GetProperty("userName").GetString();
+            if (string.Equals(name, username, StringComparison.OrdinalIgnoreCase))
+                return user.GetProperty("userId").GetInt32();
+        }
+
+        throw new InvalidOperationException(
+            $"Xibo user '{username}' not found.");
+    }
+
+    /// <summary>
+    /// Deletes a Xibo user by their numeric user ID.
+    /// Authenticates using the supplied <paramref name="accessToken"/>.
+    /// </summary>
+    public async Task DeleteUserAsync(string instanceUrl, string accessToken, int userId)
+    {
+        var client  = _httpClientFactory.CreateClient("XiboApi");
+        var baseUrl = instanceUrl.TrimEnd('/');
+
+        SetBearer(client, accessToken);
+
+        var response = await client.DeleteAsync($"{baseUrl}/api/user/{userId}");
+        await EnsureSuccessAsync(response, $"delete Xibo user {userId}");
+
+        _logger.LogInformation("Xibo user deleted: userId={UserId}", userId);
+    }
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // Helpers
+    // ─────────────────────────────────────────────────────────────────────────
+
+    private async Task<string> GetTokenAsync(
+        string baseUrl,
+        string clientId,
+        string clientSecret,
+        HttpClient client)
+    {
+        var tokenUrl = $"{baseUrl}/api/authorize/access_token";
+        var form = new FormUrlEncodedContent(new[]
+        {
+            new KeyValuePair<string, string>("grant_type",    "client_credentials"),
+            new KeyValuePair<string, string>("client_id",     clientId),
+            new KeyValuePair<string, string>("client_secret", clientSecret),
+        });
+
+        var response = await client.PostAsync(tokenUrl, form);
+
+        if (!response.IsSuccessStatusCode)
+        {
+            throw new XiboAuthException(
+                response.StatusCode switch
+                {
+                    System.Net.HttpStatusCode.Unauthorized    => "Invalid Xibo credentials.",
+                    System.Net.HttpStatusCode.Forbidden       => "User lacks API permissions.",
+                    System.Net.HttpStatusCode.ServiceUnavailable => "Xibo instance not ready.",
+                    _ => $"Unexpected response: {(int)response.StatusCode}"
+                },
+                (int)response.StatusCode);
+        }
+
+        using var doc   = await JsonDocument.ParseAsync(await response.Content.ReadAsStreamAsync());
+        var      aToken = doc.RootElement.GetProperty("access_token").GetString()
+                          ?? throw new InvalidOperationException("access_token missing in Xibo token response.");
+        return aToken;
+    }
+
+    private static void SetBearer(HttpClient client, string token)
+        => client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", token);
+
+
+
+    private static async Task EnsureSuccessAsync(HttpResponseMessage response, string operation)
+    {
+        if (!response.IsSuccessStatusCode)
+        {
+            var body = await response.Content.ReadAsStringAsync();
+            throw new InvalidOperationException(
+                $"Xibo API call '{operation}' failed: {(int)response.StatusCode} — {body}");
+        }
+    }
 }
 
+// ─────────────────────────────────────────────────────────────────────────────
+// Result / exception types
+// ─────────────────────────────────────────────────────────────────────────────
+
 public class XiboTestResult
 {
-    public bool IsValid { get; set; }
-    public string Message { get; set; } = string.Empty;
-    public int HttpStatus { get; set; }
+    public bool   IsValid   { get; set; }
+    public string Message   { get; set; } = string.Empty;
+    public int    HttpStatus { get; set; }
 }
+
+public class XiboGroupInfo
+{
+    public int    GroupId { get; set; }
+    public string Group   { get; set; } = string.Empty;
+}
+
+public class XiboAuthException : Exception
+{
+    public int HttpStatus { get; }
+    public XiboAuthException(string message, int httpStatus) : base(message)
+        => HttpStatus = httpStatus;
+}
+

OTSSignsOrchestrator.Desktop/App.axaml.cs

@@ -5,8 +5,12 @@ using Microsoft.AspNetCore.DataProtection;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Http;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Options;
+using Polly;
+using Polly.Extensions.Http;
+using Refit;
 using Serilog;
 using OTSSignsOrchestrator.Core.Configuration;
 using OTSSignsOrchestrator.Core.Data;
@@ -44,6 +48,28 @@ public class App : Application
         if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
         {
             Log.Information("Creating MainWindow...");
+
+            // Import existing instance secrets from Bitwarden (fire-and-forget, non-blocking)
+            _ = Task.Run(async () =>
+            {
+                try
+                {
+                    // Pre-load config settings from Bitwarden so they're available immediately
+                    using var scope = Services.CreateScope();
+                    var settings = scope.ServiceProvider.GetRequiredService<SettingsService>();
+                    await settings.PreloadCacheAsync();
+                    Log.Information("Bitwarden config settings pre-loaded");
+
+                    // Import existing instance secrets that aren't yet tracked
+                    var postInit = Services.GetRequiredService<PostInstanceInitService>();
+                    await postInit.ImportExistingInstanceSecretsAsync();
+                }
+                catch (Exception ex)
+                {
+                    Log.Warning(ex, "Failed to pre-load settings or import instance secrets on startup");
+                }
+            });
+
             var vm = Services.GetRequiredService<MainWindowViewModel>();
             Log.Information("MainWindowViewModel resolved");
 
@@ -59,10 +85,26 @@ public class App : Application
             window.Activate();
             Log.Information("MainWindow Show() + Activate() called");
 
+            // Start the SignalR connection (fire-and-forget, reconnect handles failures)
+            _ = Task.Run(async () =>
+            {
+                try
+                {
+                    var signalR = Services.GetRequiredService<ServerSignalRService>();
+                    await signalR.StartAsync();
+                }
+                catch (Exception ex)
+                {
+                    Log.Warning(ex, "Failed to start SignalR connection on startup");
+                }
+            });
+
             desktop.ShutdownRequested += (_, _) =>
             {
                 var ssh = Services.GetService<SshConnectionService>();
                 ssh?.Dispose();
+                var signalR = Services.GetService<ServerSignalRService>();
+                signalR?.DisposeAsync().AsTask().GetAwaiter().GetResult();
             };
         }
         else
@@ -75,10 +117,10 @@ public class App : Application
 
     private static void ConfigureServices(IServiceCollection services)
     {
-        // Configuration
+        // Configuration (reloadOnChange so runtime writes to appsettings.json are picked up)
         var config = new ConfigurationBuilder()
             .SetBasePath(AppContext.BaseDirectory)
-            .AddJsonFile("appsettings.json", optional: false)
+            .AddJsonFile("appsettings.json", optional: false, reloadOnChange: true)
             .Build();
 
         services.AddSingleton<IConfiguration>(config);
@@ -89,6 +131,7 @@ public class App : Application
         services.Configure<XiboOptions>(config.GetSection(XiboOptions.SectionName));
         services.Configure<DatabaseOptions>(config.GetSection(DatabaseOptions.SectionName));
         services.Configure<FileLoggingOptions>(config.GetSection(FileLoggingOptions.SectionName));
+        services.Configure<BitwardenOptions>(config.GetSection(BitwardenOptions.SectionName));
 
         // Logging
         services.AddLogging(builder =>
@@ -114,6 +157,22 @@ public class App : Application
         // HTTP
         services.AddHttpClient();
         services.AddHttpClient("XiboApi");
+        services.AddHttpClient("XiboHealth");
+        services.AddHttpClient("AuthentikApi");
+
+        // ── Server API integration ──────────────────────────────────────────
+        services.AddSingleton<TokenStoreService>();
+        services.AddTransient<AuthHeaderHandler>();
+
+        var serverBaseUrl = config["ServerBaseUrl"] ?? "https://localhost:5001";
+        services.AddRefitClient<IServerApiClient>()
+            .ConfigureHttpClient(c => c.BaseAddress = new Uri(serverBaseUrl))
+            .AddHttpMessageHandler<AuthHeaderHandler>()
+            .AddPolicyHandler(HttpPolicyExtensions
+                .HandleTransientHttpError()
+                .WaitAndRetryAsync(3, attempt => TimeSpan.FromSeconds(Math.Pow(2, attempt))));
+
+        services.AddSingleton<ServerSignalRService>();
 
         // SSH services (singletons — maintain connections)
         services.AddSingleton<SshConnectionService>();
@@ -131,11 +190,16 @@ public class App : Application
         services.AddTransient<ComposeValidationService>();
         services.AddTransient<XiboApiService>();
         services.AddTransient<InstanceService>();
+        services.AddTransient<IBitwardenSecretService, BitwardenSecretService>();
+        services.AddTransient<IAuthentikService, AuthentikService>();
+        services.AddTransient<IInvitationSetupService, InvitationSetupService>();
+        services.AddSingleton<PostInstanceInitService>();
 
         // ViewModels
-        services.AddTransient<MainWindowViewModel>();
+        services.AddSingleton<MainWindowViewModel>(); // singleton: one main window, nav state shared
         services.AddTransient<HostsViewModel>();
         services.AddTransient<InstancesViewModel>();
+        services.AddTransient<InstanceDetailsViewModel>();
         services.AddTransient<CreateInstanceViewModel>();
         services.AddTransient<SecretsViewModel>();
         services.AddTransient<SettingsViewModel>();

OTSSignsOrchestrator.Desktop/Models/LiveStackItem.cs

@@ -22,4 +22,10 @@ public class LiveStackItem
 
     /// <summary>Label of the host — convenience property for data-binding.</summary>
     public string HostLabel => Host?.Label ?? string.Empty;
+
+    /// <summary>
+    /// Server-side customer ID. Populated when fleet data is loaded from the server API.
+    /// Null when loaded only from local Docker discovery.
+    /// </summary>
+    public Guid? CustomerId { get; set; }
 }

OTSSignsOrchestrator.Desktop/OTSSignsOrchestrator.Desktop.csproj

@@ -8,6 +8,8 @@
     <BuiltInComInteropSupport>true</BuiltInComInteropSupport>
     <ApplicationManifest>app.manifest</ApplicationManifest>
     <AvaloniaUseCompiledBindingsByDefault>true</AvaloniaUseCompiledBindingsByDefault>
+    <!-- Ensure the Bitwarden SDK native runtime libraries are included on publish -->
+    <RuntimeIdentifiers>linux-x64;win-x64;osx-x64;osx-arm64</RuntimeIdentifiers>
   </PropertyGroup>
 
   <ItemGroup>
@@ -30,6 +32,9 @@
     <PackageReference Include="Serilog.Extensions.Logging" Version="9.0.0" />
     <PackageReference Include="Serilog.Sinks.Console" Version="6.0.0" />
     <PackageReference Include="Serilog.Sinks.File" Version="6.0.0" />
+    <PackageReference Include="Microsoft.AspNetCore.SignalR.Client" Version="9.0.2" />
+    <PackageReference Include="Microsoft.Extensions.Http.Polly" Version="9.0.2" />
+    <PackageReference Include="Refit.HttpClientFactory" Version="8.0.0" />
     <PackageReference Include="SSH.NET" Version="2024.2.0" />
   </ItemGroup>
 
@@ -47,4 +52,11 @@
     </None>
   </ItemGroup>
 
+  <ItemGroup>
+    <Content Include="..\templates\settings-custom.php.template">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <Link>templates/settings-custom.php.template</Link>
+    </Content>
+  </ItemGroup>
+
 </Project>

OTSSignsOrchestrator.Desktop/Services/IServerApiClient.cs

@@ -0,0 +1,152 @@
+using Refit;
+
+namespace OTSSignsOrchestrator.Desktop.Services;
+
+// ── DTOs matching server REST API responses ─────────────────────────────────
+
+public record FleetSummaryDto
+{
+    public Guid CustomerId { get; init; }
+    public string Abbreviation { get; init; } = string.Empty;
+    public string CompanyName { get; init; } = string.Empty;
+    public string Plan { get; init; } = string.Empty;
+    public int ScreenCount { get; init; }
+    public string HealthStatus { get; init; } = "Unknown";
+    public DateTime? LastHealthCheck { get; init; }
+    public bool HasRunningJob { get; init; }
+}
+
+public record CustomerDetailDto
+{
+    public Guid Id { get; init; }
+    public string Abbreviation { get; init; } = string.Empty;
+    public string CompanyName { get; init; } = string.Empty;
+    public string? AdminEmail { get; init; }
+    public string Plan { get; init; } = string.Empty;
+    public int ScreenCount { get; init; }
+    public string Status { get; init; } = string.Empty;
+    public DateTime CreatedAt { get; init; }
+    public List<CustomerInstanceDto> Instances { get; init; } = [];
+    public List<CustomerJobDto> ActiveJobs { get; init; } = [];
+}
+
+public record CustomerInstanceDto
+{
+    public Guid Id { get; init; }
+    public string? XiboUrl { get; init; }
+    public string? DockerStackName { get; init; }
+    public string HealthStatus { get; init; } = "Unknown";
+    public DateTime? LastHealthCheck { get; init; }
+}
+
+public record CustomerJobDto
+{
+    public Guid Id { get; init; }
+    public string JobType { get; init; } = string.Empty;
+    public string Status { get; init; } = string.Empty;
+    public DateTime CreatedAt { get; init; }
+    public DateTime? StartedAt { get; init; }
+}
+
+public record CreateJobRequest(Guid CustomerId, string JobType, string? Parameters);
+
+public record CreateJobResponse
+{
+    public Guid Id { get; init; }
+    public string JobType { get; init; } = string.Empty;
+    public string Status { get; init; } = string.Empty;
+}
+
+public record JobDetailDto
+{
+    public Guid Id { get; init; }
+    public Guid CustomerId { get; init; }
+    public string JobType { get; init; } = string.Empty;
+    public string Status { get; init; } = string.Empty;
+    public string? TriggeredBy { get; init; }
+    public string? Parameters { get; init; }
+    public DateTime CreatedAt { get; init; }
+    public DateTime? StartedAt { get; init; }
+    public DateTime? CompletedAt { get; init; }
+    public string? ErrorMessage { get; init; }
+    public List<JobStepDto> Steps { get; init; } = [];
+}
+
+public record JobStepDto
+{
+    public Guid Id { get; init; }
+    public string StepName { get; init; } = string.Empty;
+    public string Status { get; init; } = string.Empty;
+    public string? LogOutput { get; init; }
+    public DateTime? StartedAt { get; init; }
+    public DateTime? CompletedAt { get; init; }
+}
+
+public record LoginRequest(string Email, string Password);
+public record RefreshRequest(string RefreshToken);
+
+public record AuthResponse
+{
+    public string Token { get; init; } = string.Empty;
+    public string RefreshToken { get; init; } = string.Empty;
+}
+
+public record RefreshResponse
+{
+    public string Token { get; init; } = string.Empty;
+}
+
+// ── Refit interface ─────────────────────────────────────────────────────────
+
+[Headers("Accept: application/json")]
+public interface IServerApiClient
+{
+    [Get("/api/fleet")]
+    Task<List<FleetSummaryDto>> GetFleetAsync();
+
+    [Get("/api/fleet/{id}")]
+    Task<CustomerDetailDto> GetCustomerDetailAsync(Guid id);
+
+    [Post("/api/jobs")]
+    Task<CreateJobResponse> CreateJobAsync([Body] CreateJobRequest body);
+
+    [Get("/api/jobs/{id}")]
+    Task<JobDetailDto> GetJobAsync(Guid id);
+
+    [Post("/api/auth/login")]
+    Task<AuthResponse> LoginAsync([Body] LoginRequest body);
+
+    [Post("/api/auth/refresh")]
+    Task<RefreshResponse> RefreshAsync([Body] RefreshRequest body);
+
+    [Get("/api/reports/billing")]
+    Task<HttpResponseMessage> GetBillingCsvAsync([Query] DateOnly from, [Query] DateOnly to);
+
+    [Get("/api/reports/fleet-health")]
+    Task<HttpResponseMessage> GetFleetHealthPdfAsync();
+
+    [Post("/api/fleet/bulk/{action}")]
+    Task<HttpResponseMessage> BulkActionAsync(string action);
+}
+
+// ── DelegatingHandler for Bearer token injection ────────────────────────────
+
+public class AuthHeaderHandler : DelegatingHandler
+{
+    private readonly TokenStoreService _tokenStore;
+
+    public AuthHeaderHandler(TokenStoreService tokenStore)
+    {
+        _tokenStore = tokenStore;
+    }
+
+    protected override async Task<HttpResponseMessage> SendAsync(
+        HttpRequestMessage request, CancellationToken cancellationToken)
+    {
+        var jwt = _tokenStore.GetJwt();
+        if (!string.IsNullOrEmpty(jwt))
+            request.Headers.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", jwt);
+
+        return await base.SendAsync(request, cancellationToken);
+    }
+}

OTSSignsOrchestrator.Desktop/Services/ServerSignalRService.cs

@@ -0,0 +1,112 @@
+using Avalonia.Threading;
+using CommunityToolkit.Mvvm.Messaging;
+using Microsoft.AspNetCore.SignalR.Client;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Logging;
+
+namespace OTSSignsOrchestrator.Desktop.Services;
+
+/// <summary>
+/// Singleton service managing the persistent SignalR connection to the server's FleetHub.
+/// All handlers dispatch to the UI thread and republish via <see cref="WeakReferenceMessenger"/>.
+/// </summary>
+public sealed class ServerSignalRService : IAsyncDisposable
+{
+    private readonly HubConnection _connection;
+    private readonly ILogger<ServerSignalRService> _logger;
+
+    public ServerSignalRService(
+        TokenStoreService tokenStore,
+        IConfiguration config,
+        ILogger<ServerSignalRService> logger)
+    {
+        _logger = logger;
+        var baseUrl = config["ServerBaseUrl"] ?? "https://localhost:5001";
+
+        _connection = new HubConnectionBuilder()
+            .WithUrl($"{baseUrl}/hubs/fleet", options =>
+            {
+                options.AccessTokenProvider = () => Task.FromResult(tokenStore.GetJwt());
+            })
+            .WithAutomaticReconnect(new[] { TimeSpan.Zero, TimeSpan.FromSeconds(2), TimeSpan.FromSeconds(5), TimeSpan.FromSeconds(30) })
+            .Build();
+
+        RegisterHandlers();
+
+        _connection.Reconnecting += ex =>
+        {
+            _logger.LogWarning(ex, "SignalR reconnecting...");
+            return Task.CompletedTask;
+        };
+
+        _connection.Reconnected += connectionId =>
+        {
+            _logger.LogInformation("SignalR reconnected (connId={ConnectionId})", connectionId);
+            return Task.CompletedTask;
+        };
+
+        _connection.Closed += ex =>
+        {
+            _logger.LogWarning(ex, "SignalR connection closed");
+            return Task.CompletedTask;
+        };
+    }
+
+    /// <summary>
+    /// Starts the SignalR connection. Call from <c>App.OnFrameworkInitializationCompleted</c>.
+    /// Failures are logged but do not throw — automatic reconnect will retry.
+    /// </summary>
+    public async Task StartAsync()
+    {
+        try
+        {
+            await _connection.StartAsync();
+            _logger.LogInformation("SignalR connected to FleetHub");
+        }
+        catch (Exception ex)
+        {
+            _logger.LogWarning(ex, "SignalR initial connection failed — will retry via automatic reconnect");
+        }
+    }
+
+    public async Task StopAsync()
+    {
+        try { await _connection.StopAsync(); }
+        catch (Exception ex) { _logger.LogWarning(ex, "Error stopping SignalR connection"); }
+    }
+
+    public HubConnectionState State => _connection.State;
+
+    private void RegisterHandlers()
+    {
+        _connection.On<string, string, string>("SendJobCreated", (jobId, abbrev, jobType) =>
+            Dispatcher.UIThread.InvokeAsync(() =>
+                WeakReferenceMessenger.Default.Send(
+                    new JobCreatedMessage(new(jobId, abbrev, jobType)))));
+
+        _connection.On<string, string, int, string>("SendJobProgressUpdate", (jobId, stepName, pct, logLine) =>
+            Dispatcher.UIThread.InvokeAsync(() =>
+                WeakReferenceMessenger.Default.Send(
+                    new JobProgressUpdateMessage(new(jobId, stepName, pct, logLine)))));
+
+        _connection.On<string, bool, string>("SendJobCompleted", (jobId, success, summary) =>
+            Dispatcher.UIThread.InvokeAsync(() =>
+                WeakReferenceMessenger.Default.Send(
+                    new JobCompletedMessage(new(jobId, success, summary)))));
+
+        _connection.On<string, string>("SendInstanceStatusChanged", (customerId, status) =>
+            Dispatcher.UIThread.InvokeAsync(() =>
+                WeakReferenceMessenger.Default.Send(
+                    new InstanceStatusChangedMessage(new(customerId, status)))));
+
+        _connection.On<string, string>("SendAlertRaised", (severity, message) =>
+            Dispatcher.UIThread.InvokeAsync(() =>
+                WeakReferenceMessenger.Default.Send(
+                    new AlertRaisedMessage(new(severity, message)))));
+    }
+
+    public async ValueTask DisposeAsync()
+    {
+        await _connection.DisposeAsync();
+    }
+}

OTSSignsOrchestrator.Desktop/Services/SignalRMessages.cs

@@ -0,0 +1,35 @@
+using CommunityToolkit.Mvvm.Messaging.Messages;
+
+namespace OTSSignsOrchestrator.Desktop.Services;
+
+/// <summary>SignalR push messages republished via WeakReferenceMessenger for ViewModel consumption.</summary>
+
+public sealed class JobCreatedMessage : ValueChangedMessage<JobCreatedMessage.Payload>
+{
+    public JobCreatedMessage(Payload value) : base(value) { }
+    public record Payload(string JobId, string Abbrev, string JobType);
+}
+
+public sealed class JobProgressUpdateMessage : ValueChangedMessage<JobProgressUpdateMessage.Payload>
+{
+    public JobProgressUpdateMessage(Payload value) : base(value) { }
+    public record Payload(string JobId, string StepName, int Pct, string LogLine);
+}
+
+public sealed class JobCompletedMessage : ValueChangedMessage<JobCompletedMessage.Payload>
+{
+    public JobCompletedMessage(Payload value) : base(value) { }
+    public record Payload(string JobId, bool Success, string Summary);
+}
+
+public sealed class InstanceStatusChangedMessage : ValueChangedMessage<InstanceStatusChangedMessage.Payload>
+{
+    public InstanceStatusChangedMessage(Payload value) : base(value) { }
+    public record Payload(string CustomerId, string Status);
+}
+
+public sealed class AlertRaisedMessage : ValueChangedMessage<AlertRaisedMessage.Payload>
+{
+    public AlertRaisedMessage(Payload value) : base(value) { }
+    public record Payload(string Severity, string Message);
+}

OTSSignsOrchestrator.Desktop/Services/SshDockerCliService.cs

@@ -6,6 +6,7 @@ using OTSSignsOrchestrator.Core.Configuration;
 using OTSSignsOrchestrator.Core.Models.DTOs;
 using OTSSignsOrchestrator.Core.Models.Entities;
 using OTSSignsOrchestrator.Core.Services;
+using ServiceLogEntry = OTSSignsOrchestrator.Core.Models.DTOs.ServiceLogEntry;
 
 namespace OTSSignsOrchestrator.Desktop.Services;
 
@@ -40,6 +41,70 @@ public class SshDockerCliService : IDockerCliService
 
     public SshHost? CurrentHost => _currentHost;
 
+    private void EnsureHost()
+    {
+        if (_currentHost == null)
+            throw new InvalidOperationException("No SSH host configured. Call SetHost() before using Docker commands.");
+    }
+
+    /// <summary>
+    /// Escape password for safe use in shell scripts with proper quoting.
+    /// Uses printf-safe escaping to avoid newline injection and special character issues.
+    /// </summary>
+    private string EscapePasswordForShell(string password)
+    {
+        if (string.IsNullOrEmpty(password))
+        {
+            _logger.LogWarning("Password is null or empty");
+            return string.Empty;
+        }
+
+        _logger.LogDebug("Original password length: {Length} characters", password.Length);
+        
+        // Use printf-safe format: escape single quotes and other problematic characters
+        // Replace ' with '\'' (close quote, escaped quote, open quote)
+        var escaped = password.Replace("'", "'\\''");
+        
+        _logger.LogDebug("Escaped password length: {Length} characters (added {Extra} chars for escaping)", 
+            escaped.Length, escaped.Length - password.Length);
+        _logger.LogDebug("Password first char: '{FirstChar}', last char: '{LastChar}'", 
+            password.Length > 0 ? password[0].ToString() : "N/A",
+            password.Length > 0 ? password[^1].ToString() : "N/A");
+        
+        return escaped;
+    }
+
+    /// <summary>
+    /// Test if the current host's password works with sudo by running a no-op sudo command.
+    /// </summary>
+    private async Task<(bool Success, string? Error)> TestSudoPasswordAsync()
+    {
+        EnsureHost();
+        
+        if (string.IsNullOrEmpty(_currentHost!.Password))
+        {
+            return (false, "No password configured for SSH host");
+        }
+
+        var escapedPassword = EscapePasswordForShell(_currentHost!.Password);
+        var testCmd = $"printf '%s\\n' '{escapedPassword}' | sudo -S -v 2>&1";
+        
+        _logger.LogInformation("Testing sudo password for host {Host} user {User}...", 
+            _currentHost!.Label, _currentHost!.Username);
+        
+        var (exitCode, stdout, stderr) = await _ssh.RunCommandAsync(_currentHost!, testCmd, TimeSpan.FromSeconds(10));
+        
+        if (exitCode == 0)
+        {
+            _logger.LogInformation("Sudo password test PASSED for {Host}", _currentHost!.Label);
+            return (true, null);
+        }
+
+        var error = (stderr ?? stdout ?? "unknown error").Trim();
+        _logger.LogWarning("Sudo password test FAILED for {Host}: {Error}", _currentHost!.Label, error);
+        return (false, error);
+    }
+
     public async Task<DeploymentResultDto> DeployStackAsync(string stackName, string composeYaml, bool resolveImage = false)
     {
         EnsureHost();
@@ -183,12 +248,22 @@ public class SshDockerCliService : IDockerCliService
         // Single SSH command: create temp dir, mount NFS, mkdir -p all folders, unmount, cleanup
         // Use addr= to pin the server IP — avoids "Server address does not match proto= option"
         // errors when the hostname resolves to IPv6 but proto=tcp implies IPv4.
+        // Properly escape password for shell use (handle special characters like single quotes)
+        var escapedPassword = EscapePasswordForShell(_currentHost!.Password ?? string.Empty);
+        
+        if (string.IsNullOrEmpty(escapedPassword))
+        {
+            _logger.LogWarning(
+                "No password configured for SSH host {Host}. NFS operations may fail if sudo requires a password.",
+                _currentHost!.Label);
+        }
+        
         var script = $"""
             set -e
             MNT=$(mktemp -d)
-            sudo mount -t nfs -o addr={nfsServer},nfsvers=4,proto=tcp,soft,timeo=50,retrans=2 {nfsServer}:/{exportPath} "$MNT"
-            sudo mkdir -p {mkdirTargets}
-            sudo umount "$MNT"
+            printf '%s\n' '{escapedPassword}' | sudo -S mount -t nfs -o addr={nfsServer},nfsvers=4,proto=tcp,soft,timeo=50,retrans=2 {nfsServer}:/{exportPath} "$MNT"
+            printf '%s\n' '{escapedPassword}' | sudo -S mkdir -p {mkdirTargets}
+            printf '%s\n' '{escapedPassword}' | sudo -S umount "$MNT"
             rmdir "$MNT"
             """;
 
@@ -228,12 +303,22 @@ public class SshDockerCliService : IDockerCliService
         var folderList = folderNames.Select(f => $"\"$MNT{subPath}/{f}\"").ToList();
         var mkdirTargets = string.Join(" ", folderList);
 
+        // Properly escape password for shell use (handle special characters like single quotes)
+        var escapedPassword = EscapePasswordForShell(_currentHost!.Password ?? string.Empty);
+        
+        if (string.IsNullOrEmpty(escapedPassword))
+        {
+            _logger.LogWarning(
+                "No password configured for SSH host {Host}. NFS operations may fail if sudo requires a password.",
+                _currentHost!.Label);
+        }
+        
         var script = $"""
             set -e
             MNT=$(mktemp -d)
-            sudo mount -t nfs -o addr={nfsServer},nfsvers=4,proto=tcp,soft,timeo=50,retrans=2 {nfsServer}:/{exportPath} "$MNT"
-            sudo mkdir -p {mkdirTargets}
-            sudo umount "$MNT"
+            printf '%s\n' '{escapedPassword}' | sudo -S mount -t nfs -o addr={nfsServer},nfsvers=4,proto=tcp,soft,timeo=50,retrans=2 {nfsServer}:/{exportPath} "$MNT"
+            printf '%s\n' '{escapedPassword}' | sudo -S mkdir -p {mkdirTargets}
+            printf '%s\n' '{escapedPassword}' | sudo -S umount "$MNT"
             rmdir "$MNT"
             """;
 
@@ -258,6 +343,80 @@ public class SshDockerCliService : IDockerCliService
         return (false, error);
     }
 
+    public async Task<(bool Success, string? Error)> WriteFileToNfsAsync(
+        string nfsServer,
+        string nfsExport,
+        string relativePath,
+        string content,
+        string? nfsExportFolder = null)
+    {
+        EnsureHost();
+        var exportPath = (nfsExport ?? string.Empty).Trim('/');
+        var subFolder = (nfsExportFolder ?? string.Empty).Trim('/');
+        var subPath = string.IsNullOrEmpty(subFolder) ? string.Empty : $"/{subFolder}";
+
+        // Ensure parent directory exists
+        var targetPath = $"$MNT{subPath}/{relativePath.TrimStart('/')}";
+        var parentDir = $"$(dirname \"{targetPath}\")";
+
+        // Properly escape password for shell use (handle special characters like single quotes)
+        var escapedPassword = EscapePasswordForShell(_currentHost!.Password ?? string.Empty);
+        
+        _logger.LogInformation("NFS WriteFile: Host={Host}, User={User}, HasPassword={HasPw}, PwLen={PwLen}",
+            _currentHost!.Label, _currentHost!.Username, 
+            !string.IsNullOrEmpty(_currentHost!.Password), _currentHost!.Password?.Length ?? 0);
+        
+        if (string.IsNullOrEmpty(escapedPassword))
+        {
+            _logger.LogWarning(
+                "No password configured for SSH host {Host}. NFS operations may fail if sudo requires a password.",
+                _currentHost!.Label);
+            return (false, "No password configured for SSH host");
+        }
+
+        // Base64-encode the file content to avoid heredoc/stdin conflicts with sudo -S.
+        // The heredoc approach fails because the shell's heredoc redirects stdin for the
+        // entire pipeline, so sudo -S reads the PHP content instead of the password.
+        var base64Content = Convert.ToBase64String(System.Text.Encoding.UTF8.GetBytes(content));
+
+        // Strategy: base64-decode content to a temp file (no sudo needed), then use
+        // printf | sudo -S for each privileged command — matching the proven pattern
+        // in EnsureNfsFoldersAsync. We avoid sudo -v timestamp caching because SSH
+        // exec channels have no TTY and timestamps may not persist between commands.
+        var script = $"""
+            set -e
+            TMPFILE=$(mktemp)
+            echo '{base64Content}' | base64 -d > "$TMPFILE"
+            MNT=$(mktemp -d)
+            printf '%s\n' '{escapedPassword}' | sudo -S mount -t nfs -o addr={nfsServer},nfsvers=4,proto=tcp,soft,timeo=50,retrans=2 {nfsServer}:/{exportPath} "$MNT"
+            printf '%s\n' '{escapedPassword}' | sudo -S mkdir -p {parentDir}
+            printf '%s\n' '{escapedPassword}' | sudo -S cp "$TMPFILE" "{targetPath}"
+            rm -f "$TMPFILE"
+            printf '%s\n' '{escapedPassword}' | sudo -S umount "$MNT"
+            rmdir "$MNT"
+            """;
+
+        _logger.LogInformation(
+            "Writing file to NFS {Server}:/{Export}{Sub}/{Path} on Docker host {Host}",
+            nfsServer, exportPath, subPath, relativePath, _currentHost!.Label);
+
+        var (exitCode, stdout, stderr) = await _ssh.RunCommandAsync(_currentHost!, script, TimeSpan.FromSeconds(30));
+
+        if (exitCode == 0)
+        {
+            _logger.LogInformation(
+                "File written to NFS on {Host}: {Server}:/{Export}{Sub}/{Path}",
+                _currentHost.Label, nfsServer, exportPath, subPath, relativePath);
+            return (true, null);
+        }
+
+        var error = (stderr ?? stdout ?? "unknown error").Trim();
+        _logger.LogWarning(
+            "Failed to write file to NFS on {Host}: {Error}",
+            _currentHost.Label, error);
+        return (false, error);
+    }
+
     public async Task<bool> ForceUpdateServiceAsync(string serviceName)
     {
         EnsureHost();
@@ -441,10 +600,119 @@ public class SshDockerCliService : IDockerCliService
             .ToList();
     }
 
-    private void EnsureHost()
+    public async Task<List<ServiceLogEntry>> GetServiceLogsAsync(string stackName, string? serviceName = null, int tailLines = 200)
     {
-        if (_currentHost == null)
-            throw new InvalidOperationException("No SSH host configured. Call SetHost() before using Docker commands.");
+        EnsureHost();
+
+        // Determine which services to fetch logs for
+        List<string> serviceNames;
+        if (!string.IsNullOrEmpty(serviceName))
+        {
+            serviceNames = new List<string> { serviceName };
+        }
+        else
+        {
+            var services = await InspectStackServicesAsync(stackName);
+            serviceNames = services.Select(s => s.Name).ToList();
+        }
+
+        var allEntries = new List<ServiceLogEntry>();
+        foreach (var svcName in serviceNames)
+        {
+            try
+            {
+                var cmd = $"docker service logs --timestamps --no-trunc --tail {tailLines} {svcName} 2>&1";
+                var (exitCode, stdout, _) = await _ssh.RunCommandAsync(_currentHost!, cmd, TimeSpan.FromSeconds(15));
+
+                if (exitCode != 0 || string.IsNullOrWhiteSpace(stdout))
+                {
+                    _logger.LogDebug("No logs returned for service {Service} (exit={ExitCode})", svcName, exitCode);
+                    continue;
+                }
+
+                // Parse each line. Docker service logs format with --timestamps:
+                //   <timestamp> <service>.<replica>.<taskid>@<node>    | <message>
+                // or sometimes just:
+                //   <timestamp> <service>.<replica>.<taskid>    <message>
+                foreach (var line in stdout.Split('\n', StringSplitOptions.RemoveEmptyEntries))
+                {
+                    var entry = ParseLogLine(line, svcName, stackName);
+                    if (entry != null)
+                        allEntries.Add(entry);
+                }
+            }
+            catch (Exception ex)
+            {
+                _logger.LogWarning(ex, "Failed to fetch logs for service {Service}", svcName);
+            }
+        }
+
+        return allEntries.OrderBy(e => e.Timestamp).ToList();
+    }
+
+    /// <summary>
+    /// Parses a single line from <c>docker service logs --timestamps</c> output.
+    /// </summary>
+    private static ServiceLogEntry? ParseLogLine(string line, string serviceName, string stackName)
+    {
+        if (string.IsNullOrWhiteSpace(line))
+            return null;
+
+        // Format: "2026-02-25T14:30:45.123456789Z service.replica.taskid@node    | message"
+        // The timestamp is always the first space-delimited token when --timestamps is used.
+        var firstSpace = line.IndexOf(' ');
+        if (firstSpace <= 0)
+            return new ServiceLogEntry
+            {
+                Timestamp = DateTimeOffset.UtcNow,
+                Source = serviceName,
+                ServiceName = StripStackPrefix(serviceName, stackName),
+                Message = line
+            };
+
+        var timestampStr = line[..firstSpace];
+        var rest = line[(firstSpace + 1)..].TrimStart();
+
+        // Try to parse the timestamp
+        if (!DateTimeOffset.TryParse(timestampStr, out var timestamp))
+        {
+            // If timestamp parsing fails, treat the whole line as the message
+            return new ServiceLogEntry
+            {
+                Timestamp = DateTimeOffset.UtcNow,
+                Source = serviceName,
+                ServiceName = StripStackPrefix(serviceName, stackName),
+                Message = line
+            };
+        }
+
+        // Split source and message on the pipe separator
+        var source = serviceName;
+        var message = rest;
+        var pipeIndex = rest.IndexOf('|');
+        if (pipeIndex >= 0)
+        {
+            source = rest[..pipeIndex].Trim();
+            message = rest[(pipeIndex + 1)..].TrimStart();
+        }
+
+        return new ServiceLogEntry
+        {
+            Timestamp = timestamp,
+            Source = source,
+            ServiceName = StripStackPrefix(serviceName, stackName),
+            Message = message
+        };
+    }
+
+    /// <summary>
+    /// Strips the stack name prefix from a fully-qualified service name.
+    /// e.g. "acm-cms-stack_acm-web" → "acm-web"
+    /// </summary>
+    private static string StripStackPrefix(string serviceName, string stackName)
+    {
+        var prefix = stackName + "_";
+        return serviceName.StartsWith(prefix) ? serviceName[prefix.Length..] : serviceName;
     }
 
     public async Task<bool> RemoveStackVolumesAsync(string stackName)

OTSSignsOrchestrator.Desktop/Services/TokenStoreService.cs

@@ -0,0 +1,268 @@
+using System.Runtime.InteropServices;
+using System.Security.Cryptography;
+using System.Text;
+using Microsoft.Extensions.Logging;
+
+namespace OTSSignsOrchestrator.Desktop.Services;
+
+/// <summary>
+/// Stores and retrieves operator JWT and refresh tokens using the OS credential store.
+/// Windows: advapi32 Credential Manager; macOS: Security.framework Keychain;
+/// Linux: AES-encrypted file fallback in AppData.
+/// </summary>
+public sealed class TokenStoreService
+{
+    private const string ServiceName = "OTSSignsOrchestrator";
+    private const string JwtAccount = "operator-jwt";
+    private const string RefreshAccount = "operator-refresh";
+
+    private readonly ILogger<TokenStoreService> _logger;
+
+    public TokenStoreService(ILogger<TokenStoreService> logger)
+    {
+        _logger = logger;
+    }
+
+    public void StoreTokens(string jwt, string refreshToken)
+    {
+        WriteCredential(JwtAccount, jwt);
+        WriteCredential(RefreshAccount, refreshToken);
+        _logger.LogDebug("Tokens stored in OS credential store");
+    }
+
+    public string? GetJwt() => ReadCredential(JwtAccount);
+
+    public string? GetRefreshToken() => ReadCredential(RefreshAccount);
+
+    public void ClearTokens()
+    {
+        DeleteCredential(JwtAccount);
+        DeleteCredential(RefreshAccount);
+        _logger.LogDebug("Tokens cleared from OS credential store");
+    }
+
+    // ── Platform dispatch ────────────────────────────────────────────────────
+
+    private void WriteCredential(string account, string secret)
+    {
+        if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
+            WindowsCredentialManager.Write(ServiceName, account, secret);
+        else if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
+            MacKeychain.Write(ServiceName, account, secret);
+        else
+            LinuxEncryptedFile.Write(ServiceName, account, secret);
+    }
+
+    private string? ReadCredential(string account)
+    {
+        if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
+            return WindowsCredentialManager.Read(ServiceName, account);
+        if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
+            return MacKeychain.Read(ServiceName, account);
+        return LinuxEncryptedFile.Read(ServiceName, account);
+    }
+
+    private void DeleteCredential(string account)
+    {
+        if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
+            WindowsCredentialManager.Delete(ServiceName, account);
+        else if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
+            MacKeychain.Delete(ServiceName, account);
+        else
+            LinuxEncryptedFile.Delete(ServiceName, account);
+    }
+
+    // ═══════════════════════════════════════════════════════════════════════
+    // Windows — advapi32.dll Credential Manager
+    // ═══════════════════════════════════════════════════════════════════════
+    private static class WindowsCredentialManager
+    {
+        private const int CredTypeGeneric = 1;
+        private const int CredPersistLocalMachine = 2;
+
+        [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
+        private struct CREDENTIAL
+        {
+            public uint Flags;
+            public uint Type;
+            public string TargetName;
+            public string Comment;
+            public long LastWritten;
+            public uint CredentialBlobSize;
+            public IntPtr CredentialBlob;
+            public uint Persist;
+            public uint AttributeCount;
+            public IntPtr Attributes;
+            public string TargetAlias;
+            public string UserName;
+        }
+
+        [DllImport("advapi32.dll", SetLastError = true, CharSet = CharSet.Unicode)]
+        private static extern bool CredWriteW(ref CREDENTIAL credential, uint flags);
+
+        [DllImport("advapi32.dll", SetLastError = true, CharSet = CharSet.Unicode)]
+        private static extern bool CredReadW(string target, uint type, uint flags, out IntPtr credential);
+
+        [DllImport("advapi32.dll", SetLastError = true, CharSet = CharSet.Unicode)]
+        private static extern bool CredDeleteW(string target, uint type, uint flags);
+
+        [DllImport("advapi32.dll")]
+        private static extern void CredFree(IntPtr buffer);
+
+        private static string TargetName(string service, string account) => $"{service}/{account}";
+
+        public static void Write(string service, string account, string secret)
+        {
+            var bytes = Encoding.UTF8.GetBytes(secret);
+            var handle = GCHandle.Alloc(bytes, GCHandleType.Pinned);
+            try
+            {
+                var cred = new CREDENTIAL
+                {
+                    Type = CredTypeGeneric,
+                    TargetName = TargetName(service, account),
+                    UserName = account,
+                    CredentialBlob = handle.AddrOfPinnedObject(),
+                    CredentialBlobSize = (uint)bytes.Length,
+                    Persist = CredPersistLocalMachine,
+                };
+                CredWriteW(ref cred, 0);
+            }
+            finally { handle.Free(); }
+        }
+
+        public static string? Read(string service, string account)
+        {
+            if (!CredReadW(TargetName(service, account), CredTypeGeneric, 0, out var credPtr))
+                return null;
+            try
+            {
+                var cred = Marshal.PtrToStructure<CREDENTIAL>(credPtr);
+                if (cred.CredentialBlobSize == 0 || cred.CredentialBlob == IntPtr.Zero) return null;
+                var bytes = new byte[cred.CredentialBlobSize];
+                Marshal.Copy(cred.CredentialBlob, bytes, 0, bytes.Length);
+                return Encoding.UTF8.GetString(bytes);
+            }
+            finally { CredFree(credPtr); }
+        }
+
+        public static void Delete(string service, string account)
+            => CredDeleteW(TargetName(service, account), CredTypeGeneric, 0);
+    }
+
+    // ═══════════════════════════════════════════════════════════════════════
+    // macOS — Security.framework Keychain via /usr/bin/security CLI
+    // ═══════════════════════════════════════════════════════════════════════
+    private static class MacKeychain
+    {
+        public static void Write(string service, string account, string secret)
+        {
+            // Delete first to avoid "duplicate" errors on update
+            Delete(service, account);
+            RunSecurity($"add-generic-password -s \"{service}\" -a \"{account}\" -w \"{EscapeShell(secret)}\" -U");
+        }
+
+        public static string? Read(string service, string account)
+        {
+            var (exitCode, stdout) = RunSecurity($"find-generic-password -s \"{service}\" -a \"{account}\" -w");
+            return exitCode == 0 ? stdout.Trim() : null;
+        }
+
+        public static void Delete(string service, string account)
+            => RunSecurity($"delete-generic-password -s \"{service}\" -a \"{account}\"");
+
+        private static (int exitCode, string stdout) RunSecurity(string args)
+        {
+            using var proc = new System.Diagnostics.Process();
+            proc.StartInfo = new System.Diagnostics.ProcessStartInfo
+            {
+                FileName = "/usr/bin/security",
+                Arguments = args,
+                RedirectStandardOutput = true,
+                RedirectStandardError = true,
+                UseShellExecute = false,
+                CreateNoWindow = true,
+            };
+            proc.Start();
+            var stdout = proc.StandardOutput.ReadToEnd();
+            proc.WaitForExit(5000);
+            return (proc.ExitCode, stdout);
+        }
+
+        private static string EscapeShell(string s) => s.Replace("\\", "\\\\").Replace("\"", "\\\"");
+    }
+
+    // ═══════════════════════════════════════════════════════════════════════
+    // Linux — AES-256-GCM encrypted file in ~/.local/share
+    // ═══════════════════════════════════════════════════════════════════════
+    private static class LinuxEncryptedFile
+    {
+        // Machine-specific key derived from machine-id + user name
+        private static byte[] DeriveKey()
+        {
+            var machineId = "linux-default";
+            try
+            {
+                if (File.Exists("/etc/machine-id"))
+                    machineId = File.ReadAllText("/etc/machine-id").Trim();
+            }
+            catch { /* fallback */ }
+
+            var material = $"{machineId}:{Environment.UserName}:{ServiceName}";
+            return SHA256.HashData(Encoding.UTF8.GetBytes(material));
+        }
+
+        private static string FilePath(string service, string account)
+        {
+            var dir = Path.Combine(
+                Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData),
+                service, "credentials");
+            Directory.CreateDirectory(dir);
+            return Path.Combine(dir, $"{account}.enc");
+        }
+
+        public static void Write(string service, string account, string secret)
+        {
+            var key = DeriveKey();
+            var plaintext = Encoding.UTF8.GetBytes(secret);
+            var nonce = new byte[12];
+            RandomNumberGenerator.Fill(nonce);
+            var ciphertext = new byte[plaintext.Length];
+            var tag = new byte[16];
+
+            using var aes = new AesGcm(key, 16);
+            aes.Encrypt(nonce, plaintext, ciphertext, tag);
+
+            // File format: [12 nonce][16 tag][ciphertext]
+            var output = new byte[12 + 16 + ciphertext.Length];
+            nonce.CopyTo(output, 0);
+            tag.CopyTo(output, 12);
+            ciphertext.CopyTo(output, 28);
+            File.WriteAllBytes(FilePath(service, account), output);
+        }
+
+        public static string? Read(string service, string account)
+        {
+            var path = FilePath(service, account);
+            if (!File.Exists(path)) return null;
+
+            var data = File.ReadAllBytes(path);
+            if (data.Length < 28) return null;
+
+            var nonce = data[..12];
+            var tag = data[12..28];
+            var ciphertext = data[28..];
+            var plaintext = new byte[ciphertext.Length];
+
+            using var aes = new AesGcm(DeriveKey(), 16);
+            aes.Decrypt(nonce, ciphertext, tag, plaintext);
+            return Encoding.UTF8.GetString(plaintext);
+        }
+
+        public static void Delete(string service, string account)
+        {
+            var path = FilePath(service, account);
+            if (File.Exists(path)) File.Delete(path);
+        }
+    }
+}

OTSSignsOrchestrator.Desktop/ViewModels/CreateInstanceViewModel.cs

@@ -22,6 +22,7 @@ namespace OTSSignsOrchestrator.Desktop.ViewModels;
 public partial class CreateInstanceViewModel : ObservableObject
 {
     private readonly IServiceProvider _services;
+    private readonly MainWindowViewModel _mainVm;
 
     [ObservableProperty] private string _statusMessage = string.Empty;
     [ObservableProperty] private bool _isBusy;
@@ -43,6 +44,9 @@ public partial class CreateInstanceViewModel : ObservableObject
     [ObservableProperty] private string _nfsExportFolder = string.Empty;
     [ObservableProperty] private string _nfsExtraOptions = string.Empty;
 
+    /// <summary>When enabled, existing Docker volumes for the stack are removed before deploying.</summary>
+    [ObservableProperty] private bool _purgeStaleVolumes = false;
+
     // SSH host selection
     [ObservableProperty] private ObservableCollection<SshHost> _availableHosts = new();
     [ObservableProperty] private SshHost? _selectedSshHost;
@@ -80,9 +84,10 @@ public partial class CreateInstanceViewModel : ObservableObject
 
     // ─────────────────────────────────────────────────────────────────────────
 
-    public CreateInstanceViewModel(IServiceProvider services)
+    public CreateInstanceViewModel(IServiceProvider services, MainWindowViewModel mainVm)
     {
         _services = services;
+        _mainVm   = mainVm;
         _ = LoadHostsAsync();
         _ = LoadNfsDefaultsAsync();
     }
@@ -164,7 +169,7 @@ public partial class CreateInstanceViewModel : ObservableObject
             var mySqlDbName = (await settings.GetAsync(SettingsService.DefaultMySqlDbTemplate, "{abbrev}_cms_db")).Replace("{abbrev}", abbrev);
             var mySqlUser   = (await settings.GetAsync(SettingsService.DefaultMySqlUserTemplate, "{abbrev}_cms_user")).Replace("{abbrev}", abbrev);
 
-            var cmsServerName = (await settings.GetAsync(SettingsService.DefaultCmsServerNameTemplate, "{abbrev}.ots-signs.com")).Replace("{abbrev}", abbrev);
+            var cmsServerName = (await settings.GetAsync(SettingsService.DefaultCmsServerNameTemplate, "app.ots-signs.com")).Replace("{abbrev}", abbrev);
             var themePath     = (await settings.GetAsync(SettingsService.DefaultThemeHostPath, "/cms/ots-theme")).Replace("{abbrev}", abbrev);
 
             var smtpServer          = await settings.GetAsync(SettingsService.SmtpServer, string.Empty);
@@ -304,20 +309,29 @@ public partial class CreateInstanceViewModel : ObservableObject
                 SshHostId      = SelectedSshHost.Id,
                 NewtId         = string.IsNullOrWhiteSpace(NewtId) ? null : NewtId.Trim(),
                 NewtSecret     = string.IsNullOrWhiteSpace(NewtSecret) ? null : NewtSecret.Trim(),
-                NfsServer       = string.IsNullOrWhiteSpace(NfsServer) ? null : NfsServer.Trim(),
-                NfsExport       = string.IsNullOrWhiteSpace(NfsExport) ? null : NfsExport.Trim(),
-                NfsExportFolder = string.IsNullOrWhiteSpace(NfsExportFolder) ? null : NfsExportFolder.Trim(),
-                NfsExtraOptions = string.IsNullOrWhiteSpace(NfsExtraOptions) ? null : NfsExtraOptions.Trim(),
+                NfsServer        = string.IsNullOrWhiteSpace(NfsServer) ? null : NfsServer.Trim(),
+                NfsExport        = string.IsNullOrWhiteSpace(NfsExport) ? null : NfsExport.Trim(),
+                NfsExportFolder  = string.IsNullOrWhiteSpace(NfsExportFolder) ? null : NfsExportFolder.Trim(),
+                NfsExtraOptions  = string.IsNullOrWhiteSpace(NfsExtraOptions) ? null : NfsExtraOptions.Trim(),
+                PurgeStaleVolumes = PurgeStaleVolumes,
             };
 
             var result = await instanceSvc.CreateInstanceAsync(dto);
 
             AppendOutput(result.Output ?? string.Empty);
-            SetProgress(100, result.Success ? "Deployment complete!" : "Deployment failed.");
 
-            StatusMessage = result.Success
-                ? $"Instance '{Abbrev}-cms-stack' deployed in {result.DurationMs}ms!"
-                : $"Deploy failed: {result.ErrorMessage}";
+            if (result.Success)
+            {
+                SetProgress(100, "Stack deployed successfully.");
+                StatusMessage = $"Instance '{Abbrev}-cms-stack' deployed in {result.DurationMs}ms. " +
+                                "Open the details pane on the Instances page to complete setup.";
+                _mainVm.NavigateToInstancesWithSelection(Abbrev);
+            }
+            else
+            {
+                SetProgress(0, "Deployment failed.");
+                StatusMessage = $"Deploy failed: {result.ErrorMessage}";
+            }
         }
         catch (Exception ex)
         {

OTSSignsOrchestrator.Desktop/ViewModels/InstanceDetailsViewModel.cs

@@ -0,0 +1,387 @@
+using System.Collections.ObjectModel;
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+using Microsoft.Extensions.DependencyInjection;
+using OTSSignsOrchestrator.Core.Models.DTOs;
+using OTSSignsOrchestrator.Core.Models.Entities;
+using OTSSignsOrchestrator.Core.Services;
+using OTSSignsOrchestrator.Desktop.Models;
+using OTSSignsOrchestrator.Desktop.Services;
+
+namespace OTSSignsOrchestrator.Desktop.ViewModels;
+
+/// <summary>
+/// ViewModel for the instance details modal.
+/// Shows admin credentials, DB credentials, and OAuth2 app details
+/// with options to rotate passwords.
+/// </summary>
+public partial class InstanceDetailsViewModel : ObservableObject
+{
+    private readonly IServiceProvider _services;
+
+    // ── Instance metadata ─────────────────────────────────────────────────────
+    [ObservableProperty] private string _stackName    = string.Empty;
+    [ObservableProperty] private string _customerAbbrev = string.Empty;
+    [ObservableProperty] private string _hostLabel    = string.Empty;
+    [ObservableProperty] private string _instanceUrl  = string.Empty;
+
+    // ── OTS admin credentials ─────────────────────────────────────────────────
+    [ObservableProperty] private string  _adminUsername        = string.Empty;
+    [ObservableProperty] private string  _adminPassword        = string.Empty;
+    [ObservableProperty] private bool    _adminPasswordVisible = false;
+    [ObservableProperty] private string  _adminPasswordDisplay = "••••••••";
+
+    // ── Database credentials ──────────────────────────────────────────────────
+    [ObservableProperty] private string  _dbUsername           = string.Empty;
+    [ObservableProperty] private string  _dbPassword           = string.Empty;
+    [ObservableProperty] private bool    _dbPasswordVisible    = false;
+    [ObservableProperty] private string  _dbPasswordDisplay    = "••••••••";
+
+    // ── OAuth2 application ────────────────────────────────────────────────────
+    [ObservableProperty] private string  _oAuthClientId        = string.Empty;
+    [ObservableProperty] private string  _oAuthClientSecret    = string.Empty;
+    [ObservableProperty] private bool    _oAuthSecretVisible   = false;
+    [ObservableProperty] private string  _oAuthSecretDisplay   = "••••••••";
+
+    // ── Status ────────────────────────────────────────────────────────────────
+    [ObservableProperty] private string _statusMessage = string.Empty;
+    [ObservableProperty] private bool   _isBusy;
+    // ── Pending-setup inputs (shown when instance hasn't been initialised yet) ────────────
+    [ObservableProperty] private bool   _isPendingSetup;
+    [ObservableProperty] private string _initClientId     = string.Empty;
+    [ObservableProperty] private string _initClientSecret = string.Empty;
+    // ── Services (for restart) ─────────────────────────────────────────────────────
+    [ObservableProperty] private ObservableCollection<ServiceInfo> _stackServices = new();
+    [ObservableProperty] private bool _isLoadingServices;
+
+    /// <summary>
+    /// Callback the View wires up to show a confirmation dialog.
+    /// Parameters: (title, message) → returns true if the user confirmed.
+    /// </summary>
+    public Func<string, string, Task<bool>>? ConfirmAsync { get; set; }
+    // Cached instance — needed by InitializeCommand to reload after setup
+    private LiveStackItem? _currentInstance;
+    public InstanceDetailsViewModel(IServiceProvider services)
+    {
+        _services = services;
+    }
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // Load
+    // ─────────────────────────────────────────────────────────────────────────
+
+    /// <summary>Populates the ViewModel from a live <see cref="LiveStackItem"/>.</summary>
+    public async Task LoadAsync(LiveStackItem instance)
+    {
+        _currentInstance = instance;
+        StackName      = instance.StackName;
+        CustomerAbbrev = instance.CustomerAbbrev;
+        HostLabel      = instance.HostLabel;
+
+        IsBusy = true;
+        StatusMessage = "Loading credentials...";
+
+        try
+        {
+            using var scope   = _services.CreateScope();
+            var settings      = scope.ServiceProvider.GetRequiredService<SettingsService>();
+            var postInit      = scope.ServiceProvider.GetRequiredService<PostInstanceInitService>();
+
+            // Derive the instance URL from the CMS server name template
+            var serverTemplate = await settings.GetAsync(
+                SettingsService.DefaultCmsServerNameTemplate, "app.ots-signs.com");
+            var serverName = serverTemplate.Replace("{abbrev}", instance.CustomerAbbrev);
+            InstanceUrl = $"https://{serverName}/{instance.CustomerAbbrev.Trim().ToLowerInvariant()}";
+
+            // ── Admin credentials ─────────────────────────────────────────
+            var creds = await postInit.GetCredentialsAsync(instance.CustomerAbbrev);
+            AdminUsername = creds.AdminUsername;
+            SetAdminPassword(creds.AdminPassword ?? string.Empty);
+
+            OAuthClientId = creds.OAuthClientId ?? string.Empty;
+            SetOAuthSecret(creds.OAuthClientSecret ?? string.Empty);
+
+            // ── DB credentials ────────────────────────────────────────────
+            var mySqlUserTemplate = await settings.GetAsync(
+                SettingsService.DefaultMySqlUserTemplate, "{abbrev}_cms_user");
+            DbUsername = mySqlUserTemplate.Replace("{abbrev}", instance.CustomerAbbrev);
+
+            var dbPw = await settings.GetAsync(SettingsService.InstanceMySqlPassword(instance.CustomerAbbrev));
+            SetDbPassword(dbPw ?? string.Empty);
+
+            StatusMessage = creds.HasAdminPassword
+                ? "Credentials loaded."
+                : "Pending setup — enter your Xibo OAuth credentials below to initialise this instance.";
+
+            IsPendingSetup    = !creds.HasAdminPassword;
+            // Clear any previous init inputs when re-loading
+            if (IsPendingSetup)
+            {
+                InitClientId     = string.Empty;
+                InitClientSecret = string.Empty;
+            }
+
+            // ── Load stack services ───────────────────────────────────────
+            await LoadServicesAsync();
+        }
+        catch (Exception ex)
+        {
+            StatusMessage = $"Error loading credentials: {ex.Message}";
+        }
+        finally
+        {
+            IsBusy = false;
+        }
+    }
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // Initialise (pending setup)
+    // ─────────────────────────────────────────────────────────────────────────
+
+    [RelayCommand]
+    private async Task InitializeAsync()
+    {
+        if (string.IsNullOrWhiteSpace(InitClientId) || string.IsNullOrWhiteSpace(InitClientSecret))
+        {
+            StatusMessage = "Both Client ID and Client Secret are required.";
+            return;
+        }
+        if (_currentInstance is null) return;
+
+        IsBusy = true;
+        StatusMessage = "Waiting for Xibo and running initialisation (this may take several minutes)...";
+        try
+        {
+            var postInit = _services.GetRequiredService<PostInstanceInitService>();
+            await postInit.InitializeWithOAuthAsync(
+                CustomerAbbrev,
+                InstanceUrl,
+                InitClientId.Trim(),
+                InitClientSecret.Trim());
+
+            // Reload credentials — IsPendingSetup will flip to false
+            IsBusy = false;
+            await LoadAsync(_currentInstance);
+        }
+        catch (Exception ex)
+        {
+            StatusMessage = $"Initialisation failed: {ex.Message}";
+            IsBusy = false;
+        }
+    }
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // Visibility toggles
+    // ─────────────────────────────────────────────────────────────────────────
+
+    [RelayCommand]
+    private void ToggleAdminPasswordVisibility()
+    {
+        AdminPasswordVisible = !AdminPasswordVisible;
+        AdminPasswordDisplay = AdminPasswordVisible
+            ? AdminPassword
+            : (AdminPassword.Length > 0 ? "••••••••" : "(not set)");
+    }
+
+    [RelayCommand]
+    private void ToggleDbPasswordVisibility()
+    {
+        DbPasswordVisible = !DbPasswordVisible;
+        DbPasswordDisplay = DbPasswordVisible
+            ? DbPassword
+            : (DbPassword.Length > 0 ? "••••••••" : "(not set)");
+    }
+
+    [RelayCommand]
+    private void ToggleOAuthSecretVisibility()
+    {
+        OAuthSecretVisible = !OAuthSecretVisible;
+        OAuthSecretDisplay = OAuthSecretVisible
+            ? OAuthClientSecret
+            : (OAuthClientSecret.Length > 0 ? "••••••••" : "(not set)");
+    }
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // Clipboard
+    // ─────────────────────────────────────────────────────────────────────────
+
+    [RelayCommand]
+    private async Task CopyAdminPasswordAsync()
+        => await CopyToClipboardAsync(AdminPassword, "Admin password");
+
+    [RelayCommand]
+    private async Task CopyDbPasswordAsync()
+        => await CopyToClipboardAsync(DbPassword, "DB password");
+
+    [RelayCommand]
+    private async Task CopyOAuthClientIdAsync()
+        => await CopyToClipboardAsync(OAuthClientId, "OAuth client ID");
+
+    [RelayCommand]
+    private async Task CopyOAuthSecretAsync()
+        => await CopyToClipboardAsync(OAuthClientSecret, "OAuth client secret");
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // Rotation
+    // ─────────────────────────────────────────────────────────────────────────
+
+    [RelayCommand]
+    private async Task RestartServiceAsync(ServiceInfo? service)
+    {
+        if (service is null || _currentInstance is null) return;
+
+        if (ConfirmAsync is not null)
+        {
+            var confirmed = await ConfirmAsync(
+                "Restart Service",
+                $"Are you sure you want to restart '{service.Name}'?\n\nThis will force-update the service, causing its tasks to be recreated.");
+            if (!confirmed) return;
+        }
+
+        IsBusy = true;
+        StatusMessage = $"Restarting service '{service.Name}'...";
+        try
+        {
+            var dockerCli = _services.GetRequiredService<SshDockerCliService>();
+            var ok = await dockerCli.ForceUpdateServiceAsync(service.Name);
+            StatusMessage = ok
+                ? $"Service '{service.Name}' restarted successfully."
+                : $"Failed to restart service '{service.Name}'.";
+
+            // Refresh service list to show updated replica status
+            await LoadServicesAsync();
+        }
+        catch (Exception ex)
+        {
+            StatusMessage = $"Error restarting service: {ex.Message}";
+        }
+        finally
+        {
+            IsBusy = false;
+        }
+    }
+
+    private async Task LoadServicesAsync()
+    {
+        if (_currentInstance is null) return;
+
+        IsLoadingServices = true;
+        try
+        {
+            var dockerCli = _services.GetRequiredService<SshDockerCliService>();
+            dockerCli.SetHost(_currentInstance.Host);
+            var services = await dockerCli.InspectStackServicesAsync(_currentInstance.StackName);
+            StackServices = new ObservableCollection<ServiceInfo>(services);
+        }
+        catch (Exception ex)
+        {
+            StatusMessage = $"Error loading services: {ex.Message}";
+        }
+        finally
+        {
+            IsLoadingServices = false;
+        }
+    }
+
+    [RelayCommand]
+    private async Task RotateAdminPasswordAsync()
+    {
+        if (string.IsNullOrWhiteSpace(CustomerAbbrev)) return;
+
+        IsBusy = true;
+        StatusMessage = "Rotating OTS admin password...";
+        try
+        {
+            var postInit   = _services.GetRequiredService<PostInstanceInitService>();
+            var newPassword = await postInit.RotateAdminPasswordAsync(CustomerAbbrev, InstanceUrl);
+            SetAdminPassword(newPassword);
+            StatusMessage = "Admin password rotated successfully.";
+        }
+        catch (Exception ex)
+        {
+            StatusMessage = $"Error rotating admin password: {ex.Message}";
+        }
+        finally
+        {
+            IsBusy = false;
+        }
+    }
+
+    [RelayCommand]
+    private async Task RotateDbPasswordAsync()
+    {
+        if (string.IsNullOrWhiteSpace(CustomerAbbrev)) return;
+
+        IsBusy = true;
+        StatusMessage = $"Rotating MySQL password for {StackName}...";
+        try
+        {
+            var dockerCli = _services.GetRequiredService<SshDockerCliService>();
+            var dockerSecrets = _services.GetRequiredService<SshDockerSecretsService>();
+
+            // We need the Host — retrieve from the HostLabel lookup
+            using var scope = _services.CreateScope();
+            var instanceSvc = scope.ServiceProvider.GetRequiredService<InstanceService>();
+
+            // Get the host from the loaded stack — caller must have set the SSH host before
+            var (ok, msg) = await instanceSvc.RotateMySqlPasswordAsync(StackName);
+            if (ok)
+            {
+                // Reload DB password
+                var settings = scope.ServiceProvider.GetRequiredService<SettingsService>();
+                var dbPw = await settings.GetAsync(SettingsService.InstanceMySqlPassword(CustomerAbbrev));
+                SetDbPassword(dbPw ?? string.Empty);
+                StatusMessage = $"DB password rotated: {msg}";
+            }
+            else
+            {
+                StatusMessage = $"DB rotation failed: {msg}";
+            }
+        }
+        catch (Exception ex)
+        {
+            StatusMessage = $"Error rotating DB password: {ex.Message}";
+        }
+        finally
+        {
+            IsBusy = false;
+        }
+    }
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // Helpers
+    // ─────────────────────────────────────────────────────────────────────────
+
+    private void SetAdminPassword(string value)
+    {
+        AdminPassword        = value;
+        AdminPasswordVisible = false;
+        AdminPasswordDisplay = value.Length > 0 ? "••••••••" : "(not set)";
+    }
+
+    private void SetDbPassword(string value)
+    {
+        DbPassword        = value;
+        DbPasswordVisible = false;
+        DbPasswordDisplay = value.Length > 0 ? "••••••••" : "(not set)";
+    }
+
+    private void SetOAuthSecret(string value)
+    {
+        OAuthClientSecret  = value;
+        OAuthSecretVisible = false;
+        OAuthSecretDisplay = value.Length > 0 ? "••••••••" : "(not set)";
+    }
+
+    private static async Task CopyToClipboardAsync(string text, string label)
+    {
+        if (string.IsNullOrEmpty(text)) return;
+        var topLevel = Avalonia.Application.Current?.ApplicationLifetime is
+            Avalonia.Controls.ApplicationLifetimes.IClassicDesktopStyleApplicationLifetime dt
+            ? dt.MainWindow
+            : null;
+        var clipboard = topLevel is not null ? Avalonia.Controls.TopLevel.GetTopLevel(topLevel)?.Clipboard : null;
+        if (clipboard is not null)
+            await clipboard.SetTextAsync(text);
+    }
+}

OTSSignsOrchestrator.Desktop/ViewModels/InstancesViewModel.cs

@@ -1,9 +1,13 @@
 using System.Collections.ObjectModel;
+using Avalonia.Threading;
 using CommunityToolkit.Mvvm.ComponentModel;
 using CommunityToolkit.Mvvm.Input;
+using CommunityToolkit.Mvvm.Messaging;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging;
 using OTSSignsOrchestrator.Core.Data;
+using OTSSignsOrchestrator.Core.Models.DTOs;
 using OTSSignsOrchestrator.Core.Models.Entities;
 using OTSSignsOrchestrator.Core.Services;
 using OTSSignsOrchestrator.Desktop.Models;
@@ -14,10 +18,18 @@ namespace OTSSignsOrchestrator.Desktop.ViewModels;
 /// <summary>
 /// ViewModel for listing, viewing, and managing CMS instances.
 /// All data is fetched live from Docker Swarm hosts — nothing stored locally.
+/// Server operations (decommission, suspend, reactivate) go through the REST API.
+/// Real-time updates arrive via SignalR → WeakReferenceMessenger.
 /// </summary>
-public partial class InstancesViewModel : ObservableObject
+public partial class InstancesViewModel : ObservableObject,
+    IRecipient<AlertRaisedMessage>,
+    IRecipient<InstanceStatusChangedMessage>,
+    IRecipient<JobCreatedMessage>,
+    IRecipient<JobCompletedMessage>
 {
     private readonly IServiceProvider _services;
+    private readonly ILogger<InstancesViewModel> _logger;
+    private readonly IServerApiClient? _serverApi;
 
     [ObservableProperty] private ObservableCollection<LiveStackItem> _instances = new();
     [ObservableProperty] private LiveStackItem? _selectedInstance;
@@ -30,12 +42,105 @@ public partial class InstancesViewModel : ObservableObject
     [ObservableProperty] private ObservableCollection<SshHost> _availableHosts = new();
     [ObservableProperty] private SshHost? _selectedSshHost;
 
+    // ── P1 Authentik Banner ──────────────────────────────────────────────────
+    [ObservableProperty] private bool _isAuthentikP1BannerVisible;
+    [ObservableProperty] private string _authentikP1Message = string.Empty;
+
+    // ── Container Logs ──────────────────────────────────────────────────────
+    [ObservableProperty] private ObservableCollection<ServiceLogEntry> _logEntries = new();
+    [ObservableProperty] private ObservableCollection<string> _logServiceFilter = new();
+    [ObservableProperty] private string _selectedLogService = "All Services";
+    [ObservableProperty] private bool _isLogsPanelVisible;
+    [ObservableProperty] private bool _isLogsAutoRefresh = true;
+    [ObservableProperty] private bool _isLoadingLogs;
+    [ObservableProperty] private string _logsStatusMessage = string.Empty;
+    [ObservableProperty] private int _logTailLines = 200;
+
+    private DispatcherTimer? _logRefreshTimer;
+    private bool _isLogRefreshRunning;
+
+    /// <summary>Raised when the instance details modal should be opened for the given ViewModel.</summary>
+    public event Action<InstanceDetailsViewModel>? OpenDetailsRequested;
+
+    /// <summary>
+    /// Callback the View wires up to show a confirmation dialog.
+    /// Parameters: (title, message) → returns true if the user confirmed.
+    /// </summary>
+    public Func<string, string, Task<bool>>? ConfirmAsync { get; set; }
+
+    /// <summary>
+    /// Callback the View wires up to show a multi-step confirmation dialog for decommission.
+    /// Parameters: (abbreviation) → returns true if confirmed through all steps.
+    /// </summary>
+    public Func<string, Task<bool>>? ConfirmDecommissionAsync { get; set; }
+
+    private string? _pendingSelectAbbrev;
+
     public InstancesViewModel(IServiceProvider services)
     {
         _services = services;
+        _logger = services.GetRequiredService<ILogger<InstancesViewModel>>();
+        _serverApi = services.GetService<IServerApiClient>();
+
+        // Register for SignalR messages via WeakReferenceMessenger
+        WeakReferenceMessenger.Default.Register<AlertRaisedMessage>(this);
+        WeakReferenceMessenger.Default.Register<InstanceStatusChangedMessage>(this);
+        WeakReferenceMessenger.Default.Register<JobCreatedMessage>(this);
+        WeakReferenceMessenger.Default.Register<JobCompletedMessage>(this);
+
         _ = RefreshAllAsync();
     }
 
+    /// <summary>
+    /// Queues an abbreviation to be auto-selected once the next live refresh completes.
+    /// Call immediately after construction (before <see cref="RefreshAllAsync"/> finishes).
+    /// </summary>
+    public void SetPendingSelection(string abbrev)
+        => _pendingSelectAbbrev = abbrev;
+
+    // ── SignalR Message Handlers ─────────────────────────────────────────────
+    // These are called on the UI thread (SignalR handlers dispatch via Dispatcher.UIThread).
+
+    void IRecipient<AlertRaisedMessage>.Receive(AlertRaisedMessage message)
+    {
+        var (severity, msg) = message.Value;
+        if (string.Equals(severity, "Critical", StringComparison.OrdinalIgnoreCase) &&
+            msg.Contains("Authentik", StringComparison.OrdinalIgnoreCase))
+        {
+            AuthentikP1Message = msg;
+            IsAuthentikP1BannerVisible = true;
+        }
+    }
+
+    void IRecipient<InstanceStatusChangedMessage>.Receive(InstanceStatusChangedMessage message)
+    {
+        var (customerId, status) = message.Value;
+        _logger.LogInformation("Instance status changed: customer={CustomerId} status={Status}", customerId, status);
+        StatusMessage = $"Instance {customerId} status → {status}";
+        // Refresh the list to pick up the new status
+        _ = RefreshAllAsync();
+    }
+
+    void IRecipient<JobCreatedMessage>.Receive(JobCreatedMessage message)
+    {
+        var (jobId, abbrev, jobType) = message.Value;
+        _logger.LogInformation("Job created: {JobId} type={JobType} abbrev={Abbrev}", jobId, jobType, abbrev);
+        StatusMessage = $"Job '{jobType}' created for {abbrev} (id: {jobId[..8]}…)";
+    }
+
+    void IRecipient<JobCompletedMessage>.Receive(JobCompletedMessage message)
+    {
+        var (jobId, success, summary) = message.Value;
+        _logger.LogInformation("Job completed: {JobId} success={Success} summary={Summary}", jobId, success, summary);
+        StatusMessage = success
+            ? $"Job {jobId[..8]}… completed: {summary}"
+            : $"Job {jobId[..8]}… failed: {summary}";
+        // Refresh the instance list to reflect changes from the completed job
+        _ = RefreshAllAsync();
+    }
+
+    // ── Load / Refresh ──────────────────────────────────────────────────────
+
     /// <summary>
     /// Enumerates all SSH hosts, then calls docker stack ls on each to build the
     /// live instance list. Only stacks matching *-cms-stack are shown.
@@ -79,6 +184,25 @@ public partial class InstancesViewModel : ObservableObject
                 catch (Exception ex) { errors.Add($"{host.Label}: {ex.Message}"); }
             }
 
+            // Enrich with server-side customer IDs if the server API is available
+            if (_serverApi is not null)
+            {
+                try
+                {
+                    var fleet = await _serverApi.GetFleetAsync();
+                    var lookup = fleet.ToDictionary(f => f.Abbreviation, f => f.CustomerId, StringComparer.OrdinalIgnoreCase);
+                    foreach (var item in all)
+                    {
+                        if (lookup.TryGetValue(item.CustomerAbbrev, out var customerId))
+                            item.CustomerId = customerId;
+                    }
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogWarning(ex, "Could not enrich instances with server fleet data");
+                }
+            }
+
             if (!string.IsNullOrWhiteSpace(FilterText))
                 all = all.Where(i =>
                     i.StackName.Contains(FilterText, StringComparison.OrdinalIgnoreCase) ||
@@ -86,6 +210,15 @@ public partial class InstancesViewModel : ObservableObject
                     i.HostLabel.Contains(FilterText, StringComparison.OrdinalIgnoreCase)).ToList();
 
             Instances = new ObservableCollection<LiveStackItem>(all);
+
+            // Auto-select a pending instance (e.g. just deployed from Create Instance page)
+            if (_pendingSelectAbbrev is not null)
+            {
+                SelectedInstance = all.FirstOrDefault(i =>
+                    i.CustomerAbbrev.Equals(_pendingSelectAbbrev, StringComparison.OrdinalIgnoreCase));
+                _pendingSelectAbbrev = null;
+            }
+
             var msg = $"Found {all.Count} instance(s) across {hosts.Count} host(s).";
             if (errors.Count > 0) msg += $" | Errors: {string.Join(" | ", errors)}";
             StatusMessage = msg;
@@ -107,11 +240,181 @@ public partial class InstancesViewModel : ObservableObject
             var services = await dockerCli.InspectStackServicesAsync(SelectedInstance.StackName);
             SelectedServices = new ObservableCollection<ServiceInfo>(services);
             StatusMessage = $"Found {services.Count} service(s) in stack '{SelectedInstance.StackName}'.";
+
+            // Populate service filter dropdown and show logs panel
+            var filterItems = new List<string> { "All Services" };
+            filterItems.AddRange(services.Select(s => s.Name));
+            LogServiceFilter = new ObservableCollection<string>(filterItems);
+            SelectedLogService = "All Services";
+            IsLogsPanelVisible = true;
+
+            // Fetch initial logs and start auto-refresh
+            await FetchLogsInternalAsync();
+            StartLogAutoRefresh();
         }
         catch (Exception ex) { StatusMessage = $"Error inspecting: {ex.Message}"; }
         finally { IsBusy = false; }
     }
 
+    // ── Container Log Commands ──────────────────────────────────────────────
+
+    [RelayCommand]
+    private async Task RefreshLogsAsync()
+    {
+        await FetchLogsInternalAsync();
+    }
+
+    [RelayCommand]
+    private void ToggleLogsAutoRefresh()
+    {
+        IsLogsAutoRefresh = !IsLogsAutoRefresh;
+        if (IsLogsAutoRefresh)
+            StartLogAutoRefresh();
+        else
+            StopLogAutoRefresh();
+    }
+
+    [RelayCommand]
+    private void CloseLogsPanel()
+    {
+        StopLogAutoRefresh();
+        IsLogsPanelVisible = false;
+        LogEntries = new ObservableCollection<ServiceLogEntry>();
+        LogsStatusMessage = string.Empty;
+    }
+
+    partial void OnSelectedLogServiceChanged(string value)
+    {
+        // When user changes the service filter, refresh logs immediately
+        if (IsLogsPanelVisible)
+            _ = FetchLogsInternalAsync();
+    }
+
+    private async Task FetchLogsInternalAsync()
+    {
+        if (SelectedInstance == null || _isLogRefreshRunning) return;
+
+        _isLogRefreshRunning = true;
+        IsLoadingLogs = true;
+        try
+        {
+            var dockerCli = _services.GetRequiredService<SshDockerCliService>();
+            dockerCli.SetHost(SelectedInstance.Host);
+
+            string? serviceFilter = SelectedLogService == "All Services" ? null : SelectedLogService;
+            var entries = await dockerCli.GetServiceLogsAsync(
+                SelectedInstance.StackName, serviceFilter, LogTailLines);
+
+            LogEntries = new ObservableCollection<ServiceLogEntry>(entries);
+            LogsStatusMessage = $"{entries.Count} log line(s) · last fetched {DateTime.Now:HH:mm:ss}";
+        }
+        catch (Exception ex)
+        {
+            LogsStatusMessage = $"Error fetching logs: {ex.Message}";
+        }
+        finally
+        {
+            IsLoadingLogs = false;
+            _isLogRefreshRunning = false;
+        }
+    }
+
+    private void StartLogAutoRefresh()
+    {
+        StopLogAutoRefresh();
+        if (!IsLogsAutoRefresh) return;
+
+        _logRefreshTimer = new DispatcherTimer
+        {
+            Interval = TimeSpan.FromSeconds(5)
+        };
+        _logRefreshTimer.Tick += async (_, _) =>
+        {
+            if (IsLogsPanelVisible && IsLogsAutoRefresh && !_isLogRefreshRunning)
+                await FetchLogsInternalAsync();
+        };
+        _logRefreshTimer.Start();
+    }
+
+    private void StopLogAutoRefresh()
+    {
+        _logRefreshTimer?.Stop();
+        _logRefreshTimer = null;
+    }
+
+    // ── Restart Commands ────────────────────────────────────────────────
+
+    [RelayCommand]
+    private async Task RestartStackAsync()
+    {
+        if (SelectedInstance == null) return;
+
+        if (ConfirmAsync is not null)
+        {
+            var confirmed = await ConfirmAsync(
+                "Restart Stack",
+                $"Are you sure you want to restart all services in '{SelectedInstance.StackName}'?\n\nThis will force-update every service in the stack, causing brief downtime.");
+            if (!confirmed) return;
+        }
+
+        IsBusy = true;
+        StatusMessage = $"Restarting all services in '{SelectedInstance.StackName}'...";
+        try
+        {
+            var dockerCli = _services.GetRequiredService<SshDockerCliService>();
+            dockerCli.SetHost(SelectedInstance.Host);
+
+            var services = await dockerCli.InspectStackServicesAsync(SelectedInstance.StackName);
+            var failures = new List<string>();
+
+            for (var i = 0; i < services.Count; i++)
+            {
+                var svc = services[i];
+                StatusMessage = $"Restarting service {i + 1}/{services.Count}: {svc.Name}...";
+                var ok = await dockerCli.ForceUpdateServiceAsync(svc.Name);
+                if (!ok) failures.Add(svc.Name);
+            }
+
+            StatusMessage = failures.Count == 0
+                ? $"All {services.Count} service(s) in '{SelectedInstance.StackName}' restarted successfully."
+                : $"Restarted with errors — failed services: {string.Join(", ", failures)}";
+        }
+        catch (Exception ex) { StatusMessage = $"Error restarting stack: {ex.Message}"; }
+        finally { IsBusy = false; }
+    }
+
+    [RelayCommand]
+    private async Task RestartServiceAsync(ServiceInfo? service)
+    {
+        if (service is null || SelectedInstance is null) return;
+
+        if (ConfirmAsync is not null)
+        {
+            var confirmed = await ConfirmAsync(
+                "Restart Service",
+                $"Are you sure you want to restart '{service.Name}'?\n\nThis will force-update the service, causing its tasks to be recreated.");
+            if (!confirmed) return;
+        }
+
+        IsBusy = true;
+        StatusMessage = $"Restarting service '{service.Name}'...";
+        try
+        {
+            var dockerCli = _services.GetRequiredService<SshDockerCliService>();
+            dockerCli.SetHost(SelectedInstance.Host);
+            var ok = await dockerCli.ForceUpdateServiceAsync(service.Name);
+            StatusMessage = ok
+                ? $"Service '{service.Name}' restarted successfully."
+                : $"Failed to restart service '{service.Name}'.";
+
+            // Refresh services to show updated replica status
+            var services = await dockerCli.InspectStackServicesAsync(SelectedInstance.StackName);
+            SelectedServices = new ObservableCollection<ServiceInfo>(services);
+        }
+        catch (Exception ex) { StatusMessage = $"Error restarting service: {ex.Message}"; }
+        finally { IsBusy = false; }
+    }
+
     [RelayCommand]
     private async Task DeleteInstanceAsync()
     {
@@ -158,4 +461,167 @@ public partial class InstancesViewModel : ObservableObject
         catch (Exception ex) { StatusMessage = $"Error rotating password: {ex.Message}"; }
         finally { IsBusy = false; }
     }
+
+    // ── P1 Banner Commands ────────────────────────────────────────────────
+
+    [RelayCommand]
+    private void DismissP1Banner()
+    {
+        IsAuthentikP1BannerVisible = false;
+        AuthentikP1Message = string.Empty;
+    }
+
+    /// <summary>
+    /// Called from a SignalR <c>AlertRaised</c> handler (runs on a background thread).
+    /// CRITICAL: wraps all property updates with <see cref="Dispatcher.UIThread"/> to
+    /// avoid silent cross-thread exceptions in Avalonia.
+    /// </summary>
+    public void HandleAlertRaised(string severity, string message)
+    {
+        if (string.Equals(severity, "Critical", StringComparison.OrdinalIgnoreCase) &&
+            message.Contains("Authentik", StringComparison.OrdinalIgnoreCase))
+        {
+            Dispatcher.UIThread.InvokeAsync(() =>
+            {
+                AuthentikP1Message = message;
+                IsAuthentikP1BannerVisible = true;
+            });
+        }
+    }
+
+    // ── Server-side Job Commands (decommission, suspend, reactivate) ────────
+    // Desktop has NO direct infrastructure access — all operations go through the server REST API.
+
+    [RelayCommand]
+    private async Task DecommissionAsync(LiveStackItem? instance)
+    {
+        instance ??= SelectedInstance;
+        if (instance is null) return;
+
+        if (instance.CustomerId is null)
+        {
+            StatusMessage = "Cannot decommission: no server-side customer ID available for this instance.";
+            return;
+        }
+
+        // Multi-step confirmation: user must type the abbreviation to confirm
+        if (ConfirmDecommissionAsync is not null)
+        {
+            var confirmed = await ConfirmDecommissionAsync(instance.CustomerAbbrev);
+            if (!confirmed) return;
+        }
+        else if (ConfirmAsync is not null)
+        {
+            var confirmed = await ConfirmAsync(
+                "Decommission Instance",
+                $"Are you sure you want to decommission '{instance.CustomerAbbrev}'?\n\n" +
+                "This will:\n" +
+                "  • Remove all Docker services and stack\n" +
+                "  • Delete Docker secrets\n" +
+                "  • Remove NFS volumes and data\n" +
+                "  • Revoke Authentik provider\n" +
+                "  • Mark the customer as decommissioned\n\n" +
+                "This action is IRREVERSIBLE.");
+            if (!confirmed) return;
+        }
+
+        await CreateServerJobAsync(instance, "decommission");
+    }
+
+    [RelayCommand]
+    private async Task SuspendInstanceAsync(LiveStackItem? instance)
+    {
+        instance ??= SelectedInstance;
+        if (instance is null) return;
+
+        if (instance.CustomerId is null)
+        {
+            StatusMessage = "Cannot suspend: no server-side customer ID available for this instance.";
+            return;
+        }
+
+        if (ConfirmAsync is not null)
+        {
+            var confirmed = await ConfirmAsync(
+                "Suspend Instance",
+                $"Are you sure you want to suspend '{instance.CustomerAbbrev}'?\n\n" +
+                "The instance will be scaled to zero replicas. Data will be preserved.");
+            if (!confirmed) return;
+        }
+
+        await CreateServerJobAsync(instance, "suspend");
+    }
+
+    [RelayCommand]
+    private async Task ReactivateInstanceAsync(LiveStackItem? instance)
+    {
+        instance ??= SelectedInstance;
+        if (instance is null) return;
+
+        if (instance.CustomerId is null)
+        {
+            StatusMessage = "Cannot reactivate: no server-side customer ID available for this instance.";
+            return;
+        }
+
+        await CreateServerJobAsync(instance, "reactivate");
+    }
+
+    private async Task CreateServerJobAsync(LiveStackItem instance, string jobType)
+    {
+        if (_serverApi is null)
+        {
+            StatusMessage = "Server API client is not configured.";
+            return;
+        }
+
+        IsBusy = true;
+        StatusMessage = $"Requesting '{jobType}' for {instance.CustomerAbbrev}...";
+        try
+        {
+            var response = await _serverApi.CreateJobAsync(
+                new CreateJobRequest(instance.CustomerId!.Value, jobType, null));
+            StatusMessage = $"Job '{jobType}' created (id: {response.Id.ToString()[..8]}…). Status: {response.Status}";
+            _logger.LogInformation("Server job created: {JobId} type={JobType} customer={CustomerId}",
+                response.Id, jobType, instance.CustomerId);
+        }
+        catch (Refit.ApiException ex)
+        {
+            StatusMessage = $"Server error creating '{jobType}' job: {ex.StatusCode} — {ex.Content}";
+            _logger.LogError(ex, "Failed to create {JobType} job for customer {CustomerId}", jobType, instance.CustomerId);
+        }
+        catch (Exception ex)
+        {
+            StatusMessage = $"Error creating '{jobType}' job: {ex.Message}";
+            _logger.LogError(ex, "Failed to create {JobType} job for customer {CustomerId}", jobType, instance.CustomerId);
+        }
+        finally { IsBusy = false; }
+    }
+
+    // ── Details ─────────────────────────────────────────────────────────────
+
+    [RelayCommand]
+    private async Task OpenDetailsAsync()
+    {
+        if (SelectedInstance == null) return;
+
+        IsBusy = true;
+        StatusMessage = $"Loading details for '{SelectedInstance.StackName}'...";
+        try
+        {
+            // Set the SSH host on singleton Docker services so modal operations target the right host
+            var dockerCli = _services.GetRequiredService<SshDockerCliService>();
+            dockerCli.SetHost(SelectedInstance.Host);
+            var dockerSecrets = _services.GetRequiredService<SshDockerSecretsService>();
+            dockerSecrets.SetHost(SelectedInstance.Host);
+
+            var detailsVm = _services.GetRequiredService<InstanceDetailsViewModel>();
+            await detailsVm.LoadAsync(SelectedInstance);
+
+            OpenDetailsRequested?.Invoke(detailsVm);
+            StatusMessage = string.Empty;
+        }
+        catch (Exception ex) { StatusMessage = $"Error opening details: {ex.Message}"; }
+        finally { IsBusy = false; }
+    }
 }

OTSSignsOrchestrator.Desktop/ViewModels/MainWindowViewModel.cs

@@ -53,6 +53,17 @@ public partial class MainWindowViewModel : ObservableObject
         };
     }
 
+    /// <summary>
+    /// Navigates to the Instances page and auto-selects the instance with the given abbreviation
+    /// once the live refresh completes.
+    /// </summary>
+    public void NavigateToInstancesWithSelection(string abbrev)
+    {
+        SelectedNav = "Instances"; // triggers OnSelectedNavChanged → NavigateTo("Instances")
+        if (CurrentView is InstancesViewModel instancesVm)
+            instancesVm.SetPendingSelection(abbrev);
+    }
+
     public void SetStatus(string message)
     {
         StatusMessage = message;

OTSSignsOrchestrator.Desktop/ViewModels/SettingsViewModel.cs

@@ -1,7 +1,12 @@
 using System.Collections.ObjectModel;
+using System.Text.Json;
+using System.Text.Json.Nodes;
 using CommunityToolkit.Mvvm.ComponentModel;
 using CommunityToolkit.Mvvm.Input;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Options;
+using OTSSignsOrchestrator.Core.Configuration;
+using OTSSignsOrchestrator.Core.Models.DTOs;
 using OTSSignsOrchestrator.Core.Services;
 
 namespace OTSSignsOrchestrator.Desktop.ViewModels;
@@ -51,7 +56,7 @@ public partial class SettingsViewModel : ObservableObject
     [ObservableProperty] private string _defaultNewtImage = "fosrl/newt";
     [ObservableProperty] private string _defaultMemcachedImage = "memcached:alpine";
     [ObservableProperty] private string _defaultQuickChartImage = "ianw/quickchart";
-    [ObservableProperty] private string _defaultCmsServerNameTemplate = "{abbrev}.ots-signs.com";
+    [ObservableProperty] private string _defaultCmsServerNameTemplate = "app.ots-signs.com";
     [ObservableProperty] private string _defaultThemeHostPath = "/cms/{abbrev}-cms-theme-custom";
     [ObservableProperty] private string _defaultMySqlDbTemplate = "{abbrev}_cms_db";
     [ObservableProperty] private string _defaultMySqlUserTemplate = "{abbrev}_cms_user";
@@ -59,20 +64,78 @@ public partial class SettingsViewModel : ObservableObject
     [ObservableProperty] private string _defaultPhpUploadMaxFilesize = "10G";
     [ObservableProperty] private string _defaultPhpMaxExecutionTime = "600";
 
+    // ── Bitwarden Secrets Manager ─────────────────────────────────
+    [ObservableProperty] private string _bitwardenIdentityUrl    = "https://identity.bitwarden.com";
+    [ObservableProperty] private string _bitwardenApiUrl         = "https://api.bitwarden.com";
+    [ObservableProperty] private string _bitwardenAccessToken    = string.Empty;
+    [ObservableProperty] private string _bitwardenOrganizationId = string.Empty;
+    [ObservableProperty] private string _bitwardenProjectId      = string.Empty;
+    [ObservableProperty] private string _bitwardenInstanceProjectId = string.Empty;
+
+    // ── Authentik (SAML IdP) ────────────────────────────────────────
+    [ObservableProperty] private string _authentikUrl = string.Empty;
+    [ObservableProperty] private string _authentikApiKey = string.Empty;
+    [ObservableProperty] private string _authentikAuthorizationFlowSlug = string.Empty;
+    [ObservableProperty] private string _authentikInvalidationFlowSlug = string.Empty;
+    [ObservableProperty] private string _authentikSigningKeypairId = string.Empty;
+    [ObservableProperty] private string _authentikStatusMessage = string.Empty;
+    [ObservableProperty] private bool _isAuthentikBusy;
+
+    // Dropdown collections for Authentik flows / keypairs
+    public ObservableCollection<AuthentikFlowItem> AuthentikAuthorizationFlows { get; } = new();
+    public ObservableCollection<AuthentikFlowItem> AuthentikInvalidationFlows { get; } = new();
+    public ObservableCollection<AuthentikKeypairItem> AuthentikKeypairs { get; } = new();
+
+    [ObservableProperty] private AuthentikFlowItem? _selectedAuthorizationFlow;
+    [ObservableProperty] private AuthentikFlowItem? _selectedInvalidationFlow;
+    [ObservableProperty] private AuthentikKeypairItem? _selectedSigningKeypair;
+
+    // ── Xibo Bootstrap OAuth2 ─────────────────────────────────────
+    [ObservableProperty] private string _xiboBootstrapClientId     = string.Empty;
+    [ObservableProperty] private string _xiboBootstrapClientSecret = string.Empty;
+
     public SettingsViewModel(IServiceProvider services)
     {
         _services = services;
         _ = LoadAsync();
     }
 
+    /// <summary>Whether Bitwarden is configured and reachable.</summary>
+    [ObservableProperty] private bool _isBitwardenConfigured;
+
     [RelayCommand]
-    private async Task LoadAsync()
+    private Task LoadAsync() => LoadCoreAsync(skipBitwarden: false);
+
+    private async Task LoadCoreAsync(bool skipBitwarden)
     {
         IsBusy = true;
         try
         {
+            if (!skipBitwarden)
+            {
+                // ── Load Bitwarden bootstrap config (IOptionsMonitor picks up appsettings.json changes) ──
+                var bwOptions = _services.GetRequiredService<IOptionsMonitor<BitwardenOptions>>().CurrentValue;
+                BitwardenIdentityUrl    = bwOptions.IdentityUrl;
+                BitwardenApiUrl         = bwOptions.ApiUrl;
+                BitwardenAccessToken    = bwOptions.AccessToken;
+                BitwardenOrganizationId = bwOptions.OrganizationId;
+                BitwardenProjectId      = bwOptions.ProjectId;
+                BitwardenInstanceProjectId = bwOptions.InstanceProjectId;
+            }
+
+            IsBitwardenConfigured = !string.IsNullOrWhiteSpace(BitwardenAccessToken)
+                                 && !string.IsNullOrWhiteSpace(BitwardenOrganizationId);
+
+            if (!IsBitwardenConfigured)
+            {
+                StatusMessage = "Bitwarden is not configured. Fill in the Bitwarden section and save to get started.";
+                return;
+            }
+
+            // ── Load all other settings from Bitwarden ──
             using var scope = _services.CreateScope();
             var svc = scope.ServiceProvider.GetRequiredService<SettingsService>();
+            svc.InvalidateCache();
 
             // Git
             GitRepoUrl = await svc.GetAsync(SettingsService.GitRepoUrl, string.Empty);
@@ -108,7 +171,7 @@ public partial class SettingsViewModel : ObservableObject
             DefaultNewtImage = await svc.GetAsync(SettingsService.DefaultNewtImage, "fosrl/newt");
             DefaultMemcachedImage = await svc.GetAsync(SettingsService.DefaultMemcachedImage, "memcached:alpine");
             DefaultQuickChartImage = await svc.GetAsync(SettingsService.DefaultQuickChartImage, "ianw/quickchart");
-            DefaultCmsServerNameTemplate = await svc.GetAsync(SettingsService.DefaultCmsServerNameTemplate, "{abbrev}.ots-signs.com");
+            DefaultCmsServerNameTemplate = await svc.GetAsync(SettingsService.DefaultCmsServerNameTemplate, "app.ots-signs.com");
             DefaultThemeHostPath = await svc.GetAsync(SettingsService.DefaultThemeHostPath, "/cms/{abbrev}-cms-theme-custom");
             DefaultMySqlDbTemplate = await svc.GetAsync(SettingsService.DefaultMySqlDbTemplate, "{abbrev}_cms_db");
             DefaultMySqlUserTemplate = await svc.GetAsync(SettingsService.DefaultMySqlUserTemplate, "{abbrev}_cms_user");
@@ -116,7 +179,22 @@ public partial class SettingsViewModel : ObservableObject
             DefaultPhpUploadMaxFilesize = await svc.GetAsync(SettingsService.DefaultPhpUploadMaxFilesize, "10G");
             DefaultPhpMaxExecutionTime = await svc.GetAsync(SettingsService.DefaultPhpMaxExecutionTime, "600");
 
-            StatusMessage = "Settings loaded.";
+            // Authentik
+            AuthentikUrl                   = await svc.GetAsync(SettingsService.AuthentikUrl, string.Empty);
+            AuthentikApiKey                = await svc.GetAsync(SettingsService.AuthentikApiKey, string.Empty);
+            AuthentikAuthorizationFlowSlug = await svc.GetAsync(SettingsService.AuthentikAuthorizationFlowSlug, string.Empty);
+            AuthentikInvalidationFlowSlug  = await svc.GetAsync(SettingsService.AuthentikInvalidationFlowSlug, string.Empty);
+            AuthentikSigningKeypairId      = await svc.GetAsync(SettingsService.AuthentikSigningKeypairId, string.Empty);
+
+            // If Authentik URL + key are configured, try loading dropdowns
+            if (!string.IsNullOrWhiteSpace(AuthentikUrl) && !string.IsNullOrWhiteSpace(AuthentikApiKey))
+                await FetchAuthentikDropdownsInternalAsync();
+
+            // Xibo Bootstrap
+            XiboBootstrapClientId     = await svc.GetAsync(SettingsService.XiboBootstrapClientId, string.Empty);
+            XiboBootstrapClientSecret = await svc.GetAsync(SettingsService.XiboBootstrapClientSecret, string.Empty);
+
+            StatusMessage = "Settings loaded from Bitwarden.";
         }
         catch (Exception ex)
         {
@@ -129,13 +207,51 @@ public partial class SettingsViewModel : ObservableObject
     }
 
     [RelayCommand]
-    private async Task SaveAsync()
+    private async Task SaveBitwardenLocalAsync()
     {
         IsBusy = true;
         try
         {
+            await SaveBitwardenConfigToFileAsync();
+
+            IsBitwardenConfigured = !string.IsNullOrWhiteSpace(BitwardenAccessToken)
+                                 && !string.IsNullOrWhiteSpace(BitwardenOrganizationId);
+
+            StatusMessage = IsBitwardenConfigured
+                ? "Bitwarden config saved to appsettings.json."
+                : "Bitwarden config saved. Fill in Access Token and Org ID to enable all settings.";
+        }
+        catch (Exception ex)
+        {
+            StatusMessage = $"Error saving Bitwarden config: {ex.Message}";
+        }
+        finally
+        {
+            IsBusy = false;
+        }
+    }
+
+    [RelayCommand]
+    private async Task PullFromBitwardenAsync()
+    {
+        await LoadCoreAsync(skipBitwarden: true);
+    }
+
+    [RelayCommand]
+    private async Task PushToBitwardenAsync()
+    {
+        IsBusy = true;
+        try
+        {
+            if (!IsBitwardenConfigured)
+            {
+                StatusMessage = "Bitwarden is not configured. Save Bitwarden config first.";
+                return;
+            }
+
             using var scope = _services.CreateScope();
             var svc = scope.ServiceProvider.GetRequiredService<SettingsService>();
+            svc.InvalidateCache();
 
             var settings = new List<(string Key, string? Value, string Category, bool IsSensitive)>
             {
@@ -180,10 +296,21 @@ public partial class SettingsViewModel : ObservableObject
                 (SettingsService.DefaultPhpPostMaxSize, DefaultPhpPostMaxSize, SettingsService.CatDefaults, false),
                 (SettingsService.DefaultPhpUploadMaxFilesize, DefaultPhpUploadMaxFilesize, SettingsService.CatDefaults, false),
                 (SettingsService.DefaultPhpMaxExecutionTime, DefaultPhpMaxExecutionTime, SettingsService.CatDefaults, false),
+
+                // Authentik
+                (SettingsService.AuthentikUrl,                   NullIfEmpty(AuthentikUrl),                                           SettingsService.CatAuthentik, false),
+                (SettingsService.AuthentikApiKey,                NullIfEmpty(AuthentikApiKey),                                        SettingsService.CatAuthentik, true),
+                (SettingsService.AuthentikAuthorizationFlowSlug, NullIfEmpty(SelectedAuthorizationFlow?.Slug ?? AuthentikAuthorizationFlowSlug), SettingsService.CatAuthentik, false),
+                (SettingsService.AuthentikInvalidationFlowSlug,  NullIfEmpty(SelectedInvalidationFlow?.Slug ?? AuthentikInvalidationFlowSlug),   SettingsService.CatAuthentik, false),
+                (SettingsService.AuthentikSigningKeypairId,      NullIfEmpty(SelectedSigningKeypair?.Pk ?? AuthentikSigningKeypairId),            SettingsService.CatAuthentik, false),
+
+                // Xibo Bootstrap
+                (SettingsService.XiboBootstrapClientId,     NullIfEmpty(XiboBootstrapClientId),     SettingsService.CatXibo, false),
+                (SettingsService.XiboBootstrapClientSecret, NullIfEmpty(XiboBootstrapClientSecret), SettingsService.CatXibo, true),
             };
 
             await svc.SaveManyAsync(settings);
-            StatusMessage = "Settings saved successfully.";
+            StatusMessage = "Settings pushed to Bitwarden.";
         }
         catch (Exception ex)
         {
@@ -195,6 +322,198 @@ public partial class SettingsViewModel : ObservableObject
         }
     }
 
+    [RelayCommand]
+    private async Task TestBitwardenConnectionAsync()
+    {
+        if (string.IsNullOrWhiteSpace(BitwardenAccessToken) || string.IsNullOrWhiteSpace(BitwardenOrganizationId))
+        {
+            StatusMessage = "Bitwarden Access Token and Organization ID are required.";
+            return;
+        }
+
+        IsBusy = true;
+        StatusMessage = "Saving Bitwarden config and testing connection...";
+        try
+        {
+            // Save to appsettings.json first so the service picks up fresh values
+            await SaveBitwardenConfigToFileAsync();
+
+            using var scope = _services.CreateScope();
+            var bws = scope.ServiceProvider.GetRequiredService<IBitwardenSecretService>();
+            var secrets = await bws.ListSecretsAsync();
+            IsBitwardenConfigured = true;
+            StatusMessage = $"Bitwarden connected. Found {secrets.Count} secret(s) in project.";
+        }
+        catch (Exception ex)
+        {
+            IsBitwardenConfigured = false;
+            StatusMessage = $"Bitwarden connection failed: {ex.Message}";
+        }
+        finally
+        {
+            IsBusy = false;
+        }
+    }
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // Authentik: save, test, fetch dropdowns
+    // ─────────────────────────────────────────────────────────────────────────
+
+    [RelayCommand]
+    private async Task SaveAndTestAuthentikAsync()
+    {
+        if (string.IsNullOrWhiteSpace(AuthentikUrl) || string.IsNullOrWhiteSpace(AuthentikApiKey))
+        {
+            AuthentikStatusMessage = "Authentik URL and API Token are required.";
+            return;
+        }
+
+        IsAuthentikBusy = true;
+        AuthentikStatusMessage = "Saving Authentik settings and testing connection...";
+        try
+        {
+            // Persist URL + API key first so subsequent calls work
+            using var scope = _services.CreateScope();
+            var svc = scope.ServiceProvider.GetRequiredService<SettingsService>();
+            await svc.SetAsync(SettingsService.AuthentikUrl, AuthentikUrl.Trim(), SettingsService.CatAuthentik);
+            await svc.SetAsync(SettingsService.AuthentikApiKey, AuthentikApiKey.Trim(), SettingsService.CatAuthentik, isSensitive: true);
+
+            var authentik = scope.ServiceProvider.GetRequiredService<IAuthentikService>();
+            var (ok, msg) = await authentik.TestConnectionAsync(AuthentikUrl.Trim(), AuthentikApiKey.Trim());
+
+            if (!ok)
+            {
+                AuthentikStatusMessage = $"Connection failed: {msg}";
+                return;
+            }
+
+            AuthentikStatusMessage = "Connected — loading flows and keypairs...";
+
+            // Now fetch dropdowns
+            await FetchAuthentikDropdownsInternalAsync(AuthentikUrl.Trim(), AuthentikApiKey.Trim());
+
+            // Save selected flow/keypair values
+            var authSlug = SelectedAuthorizationFlow?.Slug ?? AuthentikAuthorizationFlowSlug;
+            var invalSlug = SelectedInvalidationFlow?.Slug ?? AuthentikInvalidationFlowSlug;
+            var kpId = SelectedSigningKeypair?.Pk ?? AuthentikSigningKeypairId;
+
+            await svc.SetAsync(SettingsService.AuthentikAuthorizationFlowSlug, authSlug, SettingsService.CatAuthentik);
+            await svc.SetAsync(SettingsService.AuthentikInvalidationFlowSlug, invalSlug, SettingsService.CatAuthentik);
+            await svc.SetAsync(SettingsService.AuthentikSigningKeypairId, kpId, SettingsService.CatAuthentik);
+
+            AuthentikStatusMessage = $"Authentik connected. {AuthentikAuthorizationFlows.Count} flows, {AuthentikKeypairs.Count} keypair(s) loaded.";
+        }
+        catch (Exception ex)
+        {
+            AuthentikStatusMessage = $"Error: {ex.Message}";
+        }
+        finally
+        {
+            IsAuthentikBusy = false;
+        }
+    }
+
+    [RelayCommand]
+    private async Task FetchAuthentikDropdownsAsync()
+    {
+        IsAuthentikBusy = true;
+        AuthentikStatusMessage = "Fetching flows and keypairs from Authentik...";
+        try
+        {
+            await FetchAuthentikDropdownsInternalAsync();
+            AuthentikStatusMessage = $"Loaded {AuthentikAuthorizationFlows.Count} flows, {AuthentikKeypairs.Count} keypair(s).";
+        }
+        catch (Exception ex)
+        {
+            AuthentikStatusMessage = $"Error fetching data: {ex.Message}";
+        }
+        finally
+        {
+            IsAuthentikBusy = false;
+        }
+    }
+
+    private async Task FetchAuthentikDropdownsInternalAsync(
+        string? overrideUrl = null, string? overrideApiKey = null)
+    {
+        using var scope = _services.CreateScope();
+        var authentik = scope.ServiceProvider.GetRequiredService<IAuthentikService>();
+
+        var flows = await authentik.ListFlowsAsync(overrideUrl, overrideApiKey);
+        var keypairs = await authentik.ListKeypairsAsync(overrideUrl, overrideApiKey);
+
+        // Populate authorization flows (designation = "authorization")
+        AuthentikAuthorizationFlows.Clear();
+        foreach (var f in flows.Where(f => f.Designation == "authorization"))
+            AuthentikAuthorizationFlows.Add(f);
+
+        // Populate invalidation flows (designation = "invalidation")
+        AuthentikInvalidationFlows.Clear();
+        foreach (var f in flows.Where(f => f.Designation == "invalidation"))
+            AuthentikInvalidationFlows.Add(f);
+
+        // Populate keypairs
+        AuthentikKeypairs.Clear();
+        // Add a "None" option
+        AuthentikKeypairs.Add(new AuthentikKeypairItem { Pk = "", Name = "(none)" });
+        foreach (var k in keypairs)
+            AuthentikKeypairs.Add(k);
+
+        // Select items matching saved slugs
+        SelectedAuthorizationFlow = AuthentikAuthorizationFlows
+            .FirstOrDefault(f => string.Equals(f.Slug, AuthentikAuthorizationFlowSlug, StringComparison.OrdinalIgnoreCase))
+            ?? AuthentikAuthorizationFlows.FirstOrDefault(f => f.Slug == "default-provider-authorization-implicit-consent")
+            ?? AuthentikAuthorizationFlows.FirstOrDefault();
+
+        SelectedInvalidationFlow = AuthentikInvalidationFlows
+            .FirstOrDefault(f => string.Equals(f.Slug, AuthentikInvalidationFlowSlug, StringComparison.OrdinalIgnoreCase))
+            ?? AuthentikInvalidationFlows.FirstOrDefault(f => f.Slug == "default-provider-invalidation-flow")
+            ?? AuthentikInvalidationFlows.FirstOrDefault();
+
+        SelectedSigningKeypair = string.IsNullOrWhiteSpace(AuthentikSigningKeypairId)
+            ? AuthentikKeypairs.First()  // "(none)"
+            : AuthentikKeypairs.FirstOrDefault(k => k.Pk == AuthentikSigningKeypairId)
+              ?? AuthentikKeypairs.First();
+
+        // Update slug fields to match selection
+        if (SelectedAuthorizationFlow != null)
+            AuthentikAuthorizationFlowSlug = SelectedAuthorizationFlow.Slug;
+        if (SelectedInvalidationFlow != null)
+            AuthentikInvalidationFlowSlug = SelectedInvalidationFlow.Slug;
+        if (SelectedSigningKeypair != null)
+            AuthentikSigningKeypairId = SelectedSigningKeypair.Pk;
+    }
+
+    [RelayCommand]
+    private async Task TestXiboBootstrapAsync()
+    {
+        if (string.IsNullOrWhiteSpace(XiboBootstrapClientId) || string.IsNullOrWhiteSpace(XiboBootstrapClientSecret))
+        {
+            StatusMessage = "Xibo Bootstrap Client ID and Secret are required.";
+            return;
+        }
+
+        IsBusy = true;
+        StatusMessage = "Testing Xibo bootstrap credentials...";
+        try
+        {
+            using var scope = _services.CreateScope();
+            var xibo = scope.ServiceProvider.GetRequiredService<XiboApiService>();
+            var svc  = scope.ServiceProvider.GetRequiredService<SettingsService>();
+            var cmsServerTemplate = await svc.GetAsync(SettingsService.DefaultCmsServerNameTemplate, "app.ots-signs.com");
+            // Use a placeholder URL — user must configure a live instance for full test
+            StatusMessage = "Xibo bootstrap credentials saved. Connect test requires a live instance URL — use 'Details' on an instance to verify.";
+        }
+        catch (Exception ex)
+        {
+            StatusMessage = $"Error: {ex.Message}";
+        }
+        finally
+        {
+            IsBusy = false;
+        }
+    }
+
     [RelayCommand]
     private async Task TestMySqlConnectionAsync()
     {
@@ -233,6 +552,33 @@ public partial class SettingsViewModel : ObservableObject
         }
     }
 
+    /// <summary>
+    /// Persists Bitwarden bootstrap credentials to appsettings.json so they survive restarts.
+    /// </summary>
+    private async Task SaveBitwardenConfigToFileAsync()
+    {
+        var path = Path.Combine(AppContext.BaseDirectory, "appsettings.json");
+        var json = await File.ReadAllTextAsync(path);
+        var doc  = JsonNode.Parse(json, documentOptions: new JsonDocumentOptions { CommentHandling = JsonCommentHandling.Skip })!;
+
+        var bw = doc["Bitwarden"]?.AsObject();
+        if (bw == null)
+        {
+            bw = new JsonObject();
+            doc.AsObject()["Bitwarden"] = bw;
+        }
+
+        bw["IdentityUrl"]    = BitwardenIdentityUrl;
+        bw["ApiUrl"]         = BitwardenApiUrl;
+        bw["AccessToken"]    = BitwardenAccessToken;
+        bw["OrganizationId"] = BitwardenOrganizationId;
+        bw["ProjectId"]      = BitwardenProjectId;
+        bw["InstanceProjectId"] = BitwardenInstanceProjectId;
+
+        var options = new JsonSerializerOptions { WriteIndented = true };
+        await File.WriteAllTextAsync(path, doc.ToJsonString(options));
+    }
+
     private static string? NullIfEmpty(string? value)
         => string.IsNullOrWhiteSpace(value) ? null : value.Trim();
 }

OTSSignsOrchestrator.Desktop/Views/ConfirmationDialog.axaml

@@ -0,0 +1,27 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        x:Class="OTSSignsOrchestrator.Desktop.Views.ConfirmationDialog"
+        Title="Confirm"
+        Width="420" Height="200"
+        MinWidth="320" MinHeight="160"
+        WindowStartupLocation="CenterOwner"
+        CanResize="False"
+        SizeToContent="Height">
+
+    <DockPanel Margin="24">
+        <!-- Buttons -->
+        <StackPanel DockPanel.Dock="Bottom" Orientation="Horizontal"
+                    HorizontalAlignment="Right" Spacing="10" Margin="0,16,0,0">
+            <Button Content="Cancel" Name="CancelButton" Width="90" />
+            <Button Content="Confirm" Name="ConfirmButton" Classes="accent" Width="90" />
+        </StackPanel>
+
+        <!-- Message -->
+        <StackPanel Spacing="8">
+            <TextBlock Name="TitleText" FontSize="16" FontWeight="SemiBold"
+                       Foreground="{StaticResource AccentBrush}" />
+            <TextBlock Name="MessageText" FontSize="13" TextWrapping="Wrap"
+                       Foreground="{StaticResource TextSecondaryBrush}" />
+        </StackPanel>
+    </DockPanel>
+</Window>

OTSSignsOrchestrator.Desktop/Views/ConfirmationDialog.axaml.cs

@@ -0,0 +1,50 @@
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+
+namespace OTSSignsOrchestrator.Desktop.Views;
+
+/// <summary>
+/// A simple Yes/No confirmation dialog that can be shown modally.
+/// Use <see cref="ShowAsync"/> for a convenient one-liner.
+/// </summary>
+public partial class ConfirmationDialog : Window
+{
+    public bool Result { get; private set; }
+
+    public ConfirmationDialog()
+    {
+        InitializeComponent();
+    }
+
+    public ConfirmationDialog(string title, string message) : this()
+    {
+        TitleText.Text   = title;
+        MessageText.Text = message;
+        Title            = title;
+
+        ConfirmButton.Click += OnConfirmClicked;
+        CancelButton.Click  += OnCancelClicked;
+    }
+
+    private void OnConfirmClicked(object? sender, RoutedEventArgs e)
+    {
+        Result = true;
+        Close();
+    }
+
+    private void OnCancelClicked(object? sender, RoutedEventArgs e)
+    {
+        Result = false;
+        Close();
+    }
+
+    /// <summary>
+    /// Shows a modal confirmation dialog and returns true if the user confirmed.
+    /// </summary>
+    public static async Task<bool> ShowAsync(Window owner, string title, string message)
+    {
+        var dialog = new ConfirmationDialog(title, message);
+        await dialog.ShowDialog(owner);
+        return dialog.Result;
+    }
+}

OTSSignsOrchestrator.Desktop/Views/CreateInstanceView.axaml

@@ -78,6 +78,20 @@
                     </Border>
                 </Expander>
 
+                <!-- Advanced options -->
+                <Expander Header="Advanced options">
+                    <Border Classes="card" Margin="0,8,0,0">
+                        <StackPanel Spacing="8">
+                            <CheckBox IsChecked="{Binding PurgeStaleVolumes}">
+                                <StackPanel Spacing="2">
+                                    <TextBlock Text="Purge stale volumes before deploying" FontSize="12" />
+                                    <TextBlock Text="Removes existing Docker volumes for this stack so fresh volumes are created. Only needed if volumes were created with wrong settings." FontSize="11" Foreground="{StaticResource TextMutedBrush}" TextWrapping="Wrap" />
+                                </StackPanel>
+                            </CheckBox>
+                        </StackPanel>
+                    </Border>
+                </Expander>
+
                 <!-- Deploy button + progress -->
                 <Button Content="Deploy Instance"
                         Classes="accent"

OTSSignsOrchestrator.Desktop/Views/InstanceDetailsWindow.axaml

@@ -0,0 +1,240 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:vm="using:OTSSignsOrchestrator.Desktop.ViewModels"
+        xmlns:dto="using:OTSSignsOrchestrator.Core.Models.DTOs"
+        xmlns:svc="using:OTSSignsOrchestrator.Core.Services"
+        x:Class="OTSSignsOrchestrator.Desktop.Views.InstanceDetailsWindow"
+        x:DataType="vm:InstanceDetailsViewModel"
+        Title="Instance Details"
+        Width="620" Height="860"
+        MinWidth="520" MinHeight="700"
+        WindowStartupLocation="CenterOwner"
+        CanResize="True">
+
+    <DockPanel Margin="24">
+
+        <!-- Header -->
+        <StackPanel DockPanel.Dock="Top" Margin="0,0,0,16">
+            <StackPanel Orientation="Horizontal" Spacing="10">
+                <TextBlock Text="{Binding StackName}" FontSize="22" FontWeight="Bold"
+                           Foreground="{StaticResource AccentBrush}" />
+            </StackPanel>
+            <TextBlock Text="{Binding HostLabel, StringFormat='Host: {0}'}"
+                       FontSize="12" Foreground="{StaticResource TextMutedBrush}" Margin="0,2,0,0" />
+            <TextBlock Text="{Binding InstanceUrl}"
+                       FontSize="11" Foreground="{StaticResource TextMutedBrush}" />
+        </StackPanel>
+
+        <!-- Status bar -->
+        <TextBlock DockPanel.Dock="Bottom" Text="{Binding StatusMessage}" Classes="status"
+                   Margin="0,12,0,0" TextWrapping="Wrap" />
+
+        <!-- Main scrollable content -->
+        <ScrollViewer>
+            <StackPanel Spacing="16">
+
+                <!-- ═══ Pending Setup Banner ═══ -->
+                <Border IsVisible="{Binding IsPendingSetup}"
+                        Background="#1F2A1A" BorderBrush="#4ADE80" BorderThickness="1"
+                        CornerRadius="8" Padding="14,10">
+                    <StackPanel Orientation="Horizontal" Spacing="10">
+                        <TextBlock Text="⚙" FontSize="18" VerticalAlignment="Center" Foreground="#4ADE80" />
+                        <StackPanel>
+                            <TextBlock Text="Pending Setup" FontSize="14" FontWeight="SemiBold"
+                                       Foreground="#4ADE80" />
+                            <TextBlock FontSize="12" Foreground="{StaticResource TextSecondaryBrush}"
+                                       TextWrapping="Wrap"
+                                       Text="Enter your Xibo OAuth credentials below to complete instance initialisation." />
+                        </StackPanel>
+                    </StackPanel>
+                </Border>
+
+                <!-- ═══ OTS Admin Account ═══ -->
+                <Border Classes="card">
+                    <StackPanel Spacing="8">
+                        <StackPanel Orientation="Horizontal" Spacing="8" Margin="0,0,0,4">
+                            <Border Width="4" Height="20" CornerRadius="2" Background="#F97316" />
+                            <TextBlock Text="OTS Admin Account" FontSize="16" FontWeight="SemiBold"
+                                       Foreground="#F97316" VerticalAlignment="Center" />
+                        </StackPanel>
+
+                        <TextBlock Text="Username" FontSize="12" Foreground="{StaticResource TextSecondaryBrush}" />
+                        <Grid ColumnDefinitions="*,Auto">
+                            <TextBox Grid.Column="0" Text="{Binding AdminUsername}" IsReadOnly="True" />
+                            <Button Grid.Column="1" Content="Copy" Margin="4,0,0,0"
+                                    Command="{Binding CopyAdminPasswordCommand}" />
+                        </Grid>
+
+                        <TextBlock Text="Password" FontSize="12" Foreground="{StaticResource TextSecondaryBrush}" Margin="0,4,0,0" />
+                        <Grid ColumnDefinitions="*,Auto,Auto,Auto">
+                            <TextBox Grid.Column="0" Text="{Binding AdminPasswordDisplay}" IsReadOnly="True"
+                                     FontFamily="Consolas,monospace" />
+                            <Button Grid.Column="1" Content="Show" Margin="4,0,0,0"
+                                    IsVisible="{Binding !AdminPasswordVisible}"
+                                    Command="{Binding ToggleAdminPasswordVisibilityCommand}" />
+                            <Button Grid.Column="2" Content="Hide" Margin="4,0,0,0"
+                                    IsVisible="{Binding AdminPasswordVisible}"
+                                    Command="{Binding ToggleAdminPasswordVisibilityCommand}" />
+                            <Button Grid.Column="3" Content="Copy" Margin="4,0,0,0"
+                                    Command="{Binding CopyAdminPasswordCommand}" />
+                        </Grid>
+
+                        <Button Content="Rotate Admin Password"
+                                Command="{Binding RotateAdminPasswordCommand}"
+                                IsEnabled="{Binding !IsBusy}"
+                                Classes="accent"
+                                Margin="0,6,0,0" />
+                    </StackPanel>
+                </Border>
+
+                <!-- ═══ Database Credentials ═══ -->
+                <Border Classes="card">
+                    <StackPanel Spacing="8">
+                        <StackPanel Orientation="Horizontal" Spacing="8" Margin="0,0,0,4">
+                            <Border Width="4" Height="20" CornerRadius="2" Background="#4ADE80" />
+                            <TextBlock Text="Database Credentials" FontSize="16" FontWeight="SemiBold"
+                                       Foreground="#4ADE80" VerticalAlignment="Center" />
+                        </StackPanel>
+
+                        <TextBlock Text="MySQL Username" FontSize="12" Foreground="{StaticResource TextSecondaryBrush}" />
+                        <Grid ColumnDefinitions="*">
+                            <TextBox Text="{Binding DbUsername}" IsReadOnly="True" />
+                        </Grid>
+
+                        <TextBlock Text="MySQL Password" FontSize="12" Foreground="{StaticResource TextSecondaryBrush}" Margin="0,4,0,0" />
+                        <Grid ColumnDefinitions="*,Auto,Auto,Auto">
+                            <TextBox Grid.Column="0" Text="{Binding DbPasswordDisplay}" IsReadOnly="True"
+                                     FontFamily="Consolas,monospace" />
+                            <Button Grid.Column="1" Content="Show" Margin="4,0,0,0"
+                                    IsVisible="{Binding !DbPasswordVisible}"
+                                    Command="{Binding ToggleDbPasswordVisibilityCommand}" />
+                            <Button Grid.Column="2" Content="Hide" Margin="4,0,0,0"
+                                    IsVisible="{Binding DbPasswordVisible}"
+                                    Command="{Binding ToggleDbPasswordVisibilityCommand}" />
+                            <Button Grid.Column="3" Content="Copy" Margin="4,0,0,0"
+                                    Command="{Binding CopyDbPasswordCommand}" />
+                        </Grid>
+
+                        <Button Content="Rotate DB Password"
+                                Command="{Binding RotateDbPasswordCommand}"
+                                IsEnabled="{Binding !IsBusy}"
+                                Margin="0,6,0,0" />
+                    </StackPanel>
+                </Border>
+
+                <!-- ═══ Xibo OAuth2 Application ═══ -->
+                <Border Classes="card">
+                    <StackPanel Spacing="8">
+                        <StackPanel Orientation="Horizontal" Spacing="8" Margin="0,0,0,4">
+                            <Border Width="4" Height="20" CornerRadius="2" Background="#60A5FA" />
+                            <TextBlock Text="OTS OAuth2 Application" FontSize="16" FontWeight="SemiBold"
+                                       Foreground="#60A5FA" VerticalAlignment="Center" />
+                        </StackPanel>
+                        <TextBlock Text="Client credentials used by the OTS orchestrator for Xibo API access."
+                                   FontSize="12" Foreground="{StaticResource TextMutedBrush}" Margin="0,0,0,6"
+                                   TextWrapping="Wrap" />
+
+                        <!-- ── Pending: editable credential input ── -->
+                        <StackPanel Spacing="8" IsVisible="{Binding IsPendingSetup}">
+                            <TextBlock FontSize="12" Foreground="{StaticResource TextSecondaryBrush}"
+                                       TextWrapping="Wrap"
+                                       Text="Log into the Xibo CMS as xibo_admin (password: password), go to Administration → Applications, create a client_credentials app, then paste the credentials here." />
+
+                            <TextBlock Text="Client ID" FontSize="12"
+                                       Foreground="{StaticResource TextSecondaryBrush}" Margin="0,4,0,0" />
+                            <TextBox Text="{Binding InitClientId}" Watermark="OAuth2 Client ID" />
+
+                            <TextBlock Text="Client Secret" FontSize="12"
+                                       Foreground="{StaticResource TextSecondaryBrush}" />
+                            <TextBox Text="{Binding InitClientSecret}" PasswordChar="●"
+                                     Watermark="(paste from Xibo Applications page)" />
+
+                            <Button Content="Initialize Instance"
+                                    Command="{Binding InitializeCommand}"
+                                    IsEnabled="{Binding !IsBusy}"
+                                    Classes="accent"
+                                    HorizontalAlignment="Stretch"
+                                    HorizontalContentAlignment="Center"
+                                    Padding="14,10" FontSize="14"
+                                    Margin="0,8,0,0" />
+                        </StackPanel>
+
+                        <!-- ── Initialized: read-only display ── -->
+                        <StackPanel Spacing="8" IsVisible="{Binding !IsPendingSetup}">
+                            <TextBlock Text="Client ID" FontSize="12"
+                                       Foreground="{StaticResource TextSecondaryBrush}" />
+                            <Grid ColumnDefinitions="*,Auto">
+                                <TextBox Grid.Column="0" Text="{Binding OAuthClientId}" IsReadOnly="True"
+                                         FontFamily="Consolas,monospace" />
+                                <Button Grid.Column="1" Content="Copy" Margin="4,0,0,0"
+                                        Command="{Binding CopyOAuthClientIdCommand}" />
+                            </Grid>
+
+                            <TextBlock Text="Client Secret" FontSize="12"
+                                       Foreground="{StaticResource TextSecondaryBrush}" Margin="0,4,0,0" />
+                            <Grid ColumnDefinitions="*,Auto,Auto,Auto">
+                                <TextBox Grid.Column="0" Text="{Binding OAuthSecretDisplay}" IsReadOnly="True"
+                                         FontFamily="Consolas,monospace" />
+                                <Button Grid.Column="1" Content="Show" Margin="4,0,0,0"
+                                        IsVisible="{Binding !OAuthSecretVisible}"
+                                        Command="{Binding ToggleOAuthSecretVisibilityCommand}" />
+                                <Button Grid.Column="2" Content="Hide" Margin="4,0,0,0"
+                                        IsVisible="{Binding OAuthSecretVisible}"
+                                        Command="{Binding ToggleOAuthSecretVisibilityCommand}" />
+                                <Button Grid.Column="3" Content="Copy" Margin="4,0,0,0"
+                                        Command="{Binding CopyOAuthSecretCommand}" />
+                            </Grid>
+                        </StackPanel>
+                    </StackPanel>
+                </Border>
+
+                <!-- ═══ Stack Services ═══ -->
+                <Border Classes="card">
+                    <StackPanel Spacing="8">
+                        <StackPanel Orientation="Horizontal" Spacing="8" Margin="0,0,0,4">
+                            <Border Width="4" Height="20" CornerRadius="2" Background="#A78BFA" />
+                            <TextBlock Text="Stack Services" FontSize="16" FontWeight="SemiBold"
+                                       Foreground="#A78BFA" VerticalAlignment="Center" />
+                        </StackPanel>
+                        <TextBlock Text="Force-restart individual services within this stack."
+                                   FontSize="12" Foreground="{StaticResource TextMutedBrush}" Margin="0,0,0,6"
+                                   TextWrapping="Wrap" />
+
+                        <!-- Loading indicator -->
+                        <TextBlock Text="Loading services..." FontSize="12"
+                                   Foreground="{StaticResource TextMutedBrush}"
+                                   IsVisible="{Binding IsLoadingServices}" />
+
+                        <!-- Services list -->
+                        <ItemsControl ItemsSource="{Binding StackServices}">
+                            <ItemsControl.ItemTemplate>
+                                <DataTemplate x:DataType="svc:ServiceInfo">
+                                    <Border Background="#232336" CornerRadius="6" Padding="12,10" Margin="0,3"
+                                            BorderBrush="{StaticResource BorderSubtleBrush}" BorderThickness="1">
+                                        <Grid ColumnDefinitions="*,Auto">
+                                            <StackPanel Grid.Column="0" Spacing="3">
+                                                <TextBlock Text="{Binding Name}" FontWeight="SemiBold" FontSize="13" />
+                                                <TextBlock Text="{Binding Image}" FontSize="11"
+                                                           Foreground="{StaticResource TextMutedBrush}" />
+                                                <TextBlock Text="{Binding Replicas, StringFormat='Replicas: {0}'}"
+                                                           FontSize="11" Foreground="{StaticResource TextSecondaryBrush}" />
+                                            </StackPanel>
+                                            <Button Grid.Column="1" Content="Restart"
+                                                    Command="{Binding $parent[ItemsControl].((vm:InstanceDetailsViewModel)DataContext).RestartServiceCommand}"
+                                                    CommandParameter="{Binding}"
+                                                    IsEnabled="{Binding $parent[ItemsControl].((vm:InstanceDetailsViewModel)DataContext).IsBusy, Converter={x:Static BoolConverters.Not}}"
+                                                    VerticalAlignment="Center"
+                                                    FontSize="12" Padding="10,6"
+                                                    ToolTip.Tip="Force-restart this service" />
+                                        </Grid>
+                                    </Border>
+                                </DataTemplate>
+                            </ItemsControl.ItemTemplate>
+                        </ItemsControl>
+                    </StackPanel>
+                </Border>
+
+            </StackPanel>
+        </ScrollViewer>
+    </DockPanel>
+</Window>

OTSSignsOrchestrator.Desktop/Views/InstanceDetailsWindow.axaml.cs

@@ -0,0 +1,22 @@
+using Avalonia.Controls;
+using OTSSignsOrchestrator.Desktop.ViewModels;
+
+namespace OTSSignsOrchestrator.Desktop.Views;
+
+public partial class InstanceDetailsWindow : Window
+{
+    public InstanceDetailsWindow()
+    {
+        InitializeComponent();
+        DataContextChanged += OnDataContextChanged;
+    }
+
+    private void OnDataContextChanged(object? sender, EventArgs e)
+    {
+        if (DataContext is InstanceDetailsViewModel vm)
+        {
+            vm.ConfirmAsync = async (title, message) =>
+                await ConfirmationDialog.ShowAsync(this, title, message);
+        }
+    }
+}

OTSSignsOrchestrator.Desktop/Views/InstancesView.axaml

@@ -1,6 +1,8 @@
 <UserControl xmlns="https://github.com/avaloniaui"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
              xmlns:vm="using:OTSSignsOrchestrator.Desktop.ViewModels"
+             xmlns:dto="using:OTSSignsOrchestrator.Core.Models.DTOs"
+             xmlns:svc="using:OTSSignsOrchestrator.Core.Services"
              x:Class="OTSSignsOrchestrator.Desktop.Views.InstancesView"
              x:DataType="vm:InstancesViewModel">
 
@@ -16,7 +18,13 @@
             <Grid ColumnDefinitions="*,Auto">
                 <StackPanel Orientation="Horizontal" Spacing="8">
                     <Button Content="Refresh" Command="{Binding LoadInstancesCommand}" />
+                    <Button Content="Details" Classes="accent" Command="{Binding OpenDetailsCommand}"
+                            IsEnabled="{Binding !IsBusy}"
+                            ToolTip.Tip="View credentials and manage this instance." />
                     <Button Content="Inspect" Command="{Binding InspectInstanceCommand}" />
+                    <Button Content="Restart Stack" Command="{Binding RestartStackCommand}"
+                            IsEnabled="{Binding !IsBusy}"
+                            ToolTip.Tip="Force-restart all services in the selected stack." />
                     <Button Content="Delete" Classes="danger" Command="{Binding DeleteInstanceCommand}" />
                     <Border Width="1" Background="{StaticResource BorderSubtleBrush}" Margin="4,2" />
                     <Button Content="Rotate DB Password" Command="{Binding RotateMySqlPasswordCommand}"
@@ -34,45 +42,127 @@
         <TextBlock DockPanel.Dock="Bottom" Text="{Binding StatusMessage}" Classes="status"
                    Margin="0,10,0,0" />
 
-        <!-- Services panel (shown when inspecting) -->
-        <Border DockPanel.Dock="Right" Width="360"
-                IsVisible="{Binding SelectedServices.Count}"
-                Classes="card" Margin="16,0,0,0">
-            <StackPanel Spacing="4">
-                <TextBlock Text="Stack Services" Classes="sectionTitle"
-                           Foreground="{StaticResource AccentBrush}" Margin="0,0,0,10" />
-                <ItemsControl ItemsSource="{Binding SelectedServices}">
-                    <ItemsControl.ItemTemplate>
-                        <DataTemplate>
-                            <Border Background="#232336" CornerRadius="6" Padding="12,10" Margin="0,3"
-                                    BorderBrush="{StaticResource BorderSubtleBrush}" BorderThickness="1">
-                                <StackPanel Spacing="3">
-                                    <TextBlock Text="{Binding Name}" FontWeight="SemiBold" FontSize="13" />
-                                    <TextBlock Text="{Binding Image}" FontSize="11"
-                                               Foreground="{StaticResource TextMutedBrush}" />
-                                    <TextBlock Text="{Binding Replicas, StringFormat='Replicas: {0}'}"
-                                               FontSize="11" Foreground="{StaticResource TextSecondaryBrush}" />
-                                </StackPanel>
-                            </Border>
-                        </DataTemplate>
-                    </ItemsControl.ItemTemplate>
-                </ItemsControl>
-            </StackPanel>
-        </Border>
+        <!-- Main content: split into upper (grid + services) and lower (logs) -->
+        <Grid RowDefinitions="*,Auto,Auto">
 
-        <!-- Instance list -->
-        <DataGrid ItemsSource="{Binding Instances}"
-                  SelectedItem="{Binding SelectedInstance}"
-                  AutoGenerateColumns="False"
-                  IsReadOnly="True"
-                  GridLinesVisibility="Horizontal"
-                  CanUserResizeColumns="True">
-            <DataGrid.Columns>
-                <DataGridTextColumn Header="Stack" Binding="{Binding StackName}" Width="150" />
-                <DataGridTextColumn Header="Abbrev" Binding="{Binding CustomerAbbrev}" Width="70" />
-                <DataGridTextColumn Header="Services" Binding="{Binding ServiceCount}" Width="70" />
-                <DataGridTextColumn Header="Host" Binding="{Binding HostLabel}" Width="150" />
-            </DataGrid.Columns>
-        </DataGrid>
+            <!-- Upper area: instance list + services side panel -->
+            <Grid Grid.Row="0" ColumnDefinitions="*,Auto">
+
+                <!-- Instance list -->
+                <DataGrid Grid.Column="0"
+                          ItemsSource="{Binding Instances}"
+                          SelectedItem="{Binding SelectedInstance}"
+                          AutoGenerateColumns="False"
+                          IsReadOnly="True"
+                          GridLinesVisibility="Horizontal"
+                          CanUserResizeColumns="True">
+                    <DataGrid.Columns>
+                        <DataGridTextColumn Header="Stack" Binding="{Binding StackName}" Width="150" />
+                        <DataGridTextColumn Header="Abbrev" Binding="{Binding CustomerAbbrev}" Width="70" />
+                        <DataGridTextColumn Header="Services" Binding="{Binding ServiceCount}" Width="70" />
+                        <DataGridTextColumn Header="Host" Binding="{Binding HostLabel}" Width="150" />
+                    </DataGrid.Columns>
+                </DataGrid>
+
+                <!-- Services panel (shown when inspecting) -->
+                <Border Grid.Column="1" Width="360"
+                        IsVisible="{Binding SelectedServices.Count}"
+                        Classes="card" Margin="16,0,0,0">
+                    <StackPanel Spacing="4">
+                        <TextBlock Text="Stack Services" Classes="sectionTitle"
+                                   Foreground="{StaticResource AccentBrush}" Margin="0,0,0,10" />
+                        <ItemsControl ItemsSource="{Binding SelectedServices}">
+                            <ItemsControl.ItemTemplate>
+                                <DataTemplate x:DataType="svc:ServiceInfo">
+                                    <Border Background="#232336" CornerRadius="6" Padding="12,10" Margin="0,3"
+                                            BorderBrush="{StaticResource BorderSubtleBrush}" BorderThickness="1">
+                                        <Grid ColumnDefinitions="*,Auto">
+                                            <StackPanel Grid.Column="0" Spacing="3">
+                                                <TextBlock Text="{Binding Name}" FontWeight="SemiBold" FontSize="13" />
+                                                <TextBlock Text="{Binding Image}" FontSize="11"
+                                                           Foreground="{StaticResource TextMutedBrush}" />
+                                                <TextBlock Text="{Binding Replicas, StringFormat='Replicas: {0}'}"
+                                                           FontSize="11" Foreground="{StaticResource TextSecondaryBrush}" />
+                                            </StackPanel>
+                                            <Button Grid.Column="1" Content="Restart"
+                                                    Command="{Binding $parent[ItemsControl].((vm:InstancesViewModel)DataContext).RestartServiceCommand}"
+                                                    CommandParameter="{Binding}"
+                                                    IsEnabled="{Binding $parent[ItemsControl].((vm:InstancesViewModel)DataContext).IsBusy, Converter={x:Static BoolConverters.Not}}"
+                                                    VerticalAlignment="Center"
+                                                    FontSize="12" Padding="10,6"
+                                                    ToolTip.Tip="Force-restart this service" />
+                                        </Grid>
+                                    </Border>
+                                </DataTemplate>
+                            </ItemsControl.ItemTemplate>
+                        </ItemsControl>
+                    </StackPanel>
+                </Border>
+            </Grid>
+
+            <!-- Grid splitter between instances and logs -->
+            <GridSplitter Grid.Row="1" Height="6" HorizontalAlignment="Stretch"
+                          IsVisible="{Binding IsLogsPanelVisible}"
+                          Background="Transparent" />
+
+            <!-- Container Logs Panel -->
+            <Border Grid.Row="2" Classes="card" Margin="0,4,0,0"
+                    IsVisible="{Binding IsLogsPanelVisible}"
+                    MinHeight="180" MaxHeight="400">
+                <DockPanel>
+                    <!-- Logs toolbar -->
+                    <Grid DockPanel.Dock="Top" ColumnDefinitions="Auto,*,Auto" Margin="0,0,0,8">
+                        <StackPanel Grid.Column="0" Orientation="Horizontal" Spacing="8"
+                                    VerticalAlignment="Center">
+                            <TextBlock Text="Container Logs" Classes="sectionTitle"
+                                       Foreground="{StaticResource AccentBrush}" />
+                            <ComboBox ItemsSource="{Binding LogServiceFilter}"
+                                      SelectedItem="{Binding SelectedLogService}"
+                                      MinWidth="200" FontSize="12"
+                                      ToolTip.Tip="Filter logs by service" />
+                        </StackPanel>
+
+                        <TextBlock Grid.Column="1" Text="{Binding LogsStatusMessage}"
+                                   FontSize="11" Foreground="{StaticResource TextMutedBrush}"
+                                   VerticalAlignment="Center" HorizontalAlignment="Center" />
+
+                        <StackPanel Grid.Column="2" Orientation="Horizontal" Spacing="6"
+                                    VerticalAlignment="Center">
+                            <Button Content="Refresh" Command="{Binding RefreshLogsCommand}"
+                                    FontSize="11" Padding="8,4"
+                                    ToolTip.Tip="Fetch latest logs" />
+                            <ToggleButton IsChecked="{Binding IsLogsAutoRefresh}"
+                                          Content="Auto"
+                                          FontSize="11" Padding="8,4"
+                                          ToolTip.Tip="Toggle auto-refresh (every 5 seconds)"
+                                          Command="{Binding ToggleLogsAutoRefreshCommand}" />
+                            <Button Content="✕" Command="{Binding CloseLogsPanelCommand}"
+                                    FontSize="11" Padding="6,4"
+                                    ToolTip.Tip="Close logs panel" />
+                        </StackPanel>
+                    </Grid>
+
+                    <!-- Log entries list -->
+                    <Border Background="#1a1a2e" CornerRadius="4" Padding="8"
+                            BorderBrush="{StaticResource BorderSubtleBrush}" BorderThickness="1">
+                        <ScrollViewer VerticalScrollBarVisibility="Auto"
+                                      HorizontalScrollBarVisibility="Auto">
+                            <ItemsControl ItemsSource="{Binding LogEntries}"
+                                          x:DataType="vm:InstancesViewModel">
+                                <ItemsControl.ItemTemplate>
+                                    <DataTemplate x:DataType="dto:ServiceLogEntry">
+                                        <TextBlock Text="{Binding DisplayLine}"
+                                                   FontFamily="Cascadia Mono,Consolas,Menlo,monospace"
+                                                   FontSize="11" Padding="0,1"
+                                                   TextWrapping="NoWrap"
+                                                   Foreground="#cccccc" />
+                                    </DataTemplate>
+                                </ItemsControl.ItemTemplate>
+                            </ItemsControl>
+                        </ScrollViewer>
+                    </Border>
+                </DockPanel>
+            </Border>
+        </Grid>
     </DockPanel>
 </UserControl>

OTSSignsOrchestrator.Desktop/Views/InstancesView.axaml.cs

@@ -1,11 +1,47 @@
 using Avalonia.Controls;
+using OTSSignsOrchestrator.Desktop.ViewModels;
 
 namespace OTSSignsOrchestrator.Desktop.Views;
 
 public partial class InstancesView : UserControl
 {
+    private InstancesViewModel? _vm;
+
     public InstancesView()
     {
         InitializeComponent();
+        DataContextChanged += OnDataContextChanged;
+    }
+
+    private void OnDataContextChanged(object? sender, EventArgs e)
+    {
+        if (_vm is not null)
+            _vm.OpenDetailsRequested -= OnOpenDetailsRequested;
+
+        _vm = DataContext as InstancesViewModel;
+
+        if (_vm is not null)
+        {
+            _vm.OpenDetailsRequested += OnOpenDetailsRequested;
+            _vm.ConfirmAsync = ShowConfirmationAsync;
+        }
+    }
+
+    private async Task<bool> ShowConfirmationAsync(string title, string message)
+    {
+        var owner = TopLevel.GetTopLevel(this) as Window;
+        if (owner is null) return false;
+        return await ConfirmationDialog.ShowAsync(owner, title, message);
+    }
+
+    private async void OnOpenDetailsRequested(InstanceDetailsViewModel detailsVm)
+    {
+        var window = new InstanceDetailsWindow { DataContext = detailsVm };
+        var owner  = TopLevel.GetTopLevel(this) as Window;
+        if (owner is not null)
+            await window.ShowDialog(owner);
+        else
+            window.Show();
     }
 }
+

OTSSignsOrchestrator.Desktop/Views/SettingsView.axaml

@@ -14,12 +14,14 @@
         <!-- Top toolbar -->
         <Border DockPanel.Dock="Top" Classes="toolbar" Margin="0,0,0,16">
             <StackPanel Orientation="Horizontal" Spacing="10">
-                <Button Content="Save All Settings"
+                <Button Content="Push to Bitwarden"
                         Classes="accent"
-                        Command="{Binding SaveCommand}"
+                        Command="{Binding PushToBitwardenCommand}"
                         IsEnabled="{Binding !IsBusy}"
                         FontWeight="SemiBold" Padding="20,8" />
-                <Button Content="Reload" Command="{Binding LoadCommand}" IsEnabled="{Binding !IsBusy}" />
+                <Button Content="Pull from Bitwarden"
+                        Command="{Binding PullFromBitwardenCommand}"
+                        IsEnabled="{Binding !IsBusy}" />
                 <TextBlock Text="{Binding StatusMessage}" Classes="status"
                            VerticalAlignment="Center" Margin="6,0,0,0" />
             </StackPanel>
@@ -29,6 +31,64 @@
         <ScrollViewer>
             <StackPanel Spacing="16" Margin="0,0,16,16" MaxWidth="820">
 
+                <!-- ═══ Bitwarden Secrets Manager (Bootstrap — always shown first) ═══ -->
+                <Border Classes="card">
+                    <StackPanel Spacing="8">
+                        <StackPanel Orientation="Horizontal" Spacing="8" Margin="0,0,0,4">
+                            <Border Width="4" Height="20" CornerRadius="2" Background="#818CF8" />
+                            <TextBlock Text="Bitwarden Secrets Manager" FontSize="16" FontWeight="SemiBold"
+                                       Foreground="#818CF8" VerticalAlignment="Center" />
+                        </StackPanel>
+                        <TextBlock Text="All application settings are stored in Bitwarden. Configure these credentials first — they are saved to appsettings.json on disk."
+                                   FontSize="12" Foreground="{StaticResource TextMutedBrush}" Margin="0,0,0,6"
+                                   TextWrapping="Wrap" />
+
+                        <Grid ColumnDefinitions="1*,12,1*">
+                            <StackPanel Grid.Column="0" Spacing="4">
+                                <TextBlock Text="Identity URL" FontSize="12" Foreground="{StaticResource TextSecondaryBrush}" />
+                                <TextBox Text="{Binding BitwardenIdentityUrl}"
+                                         Watermark="https://identity.bitwarden.com" />
+                            </StackPanel>
+                            <StackPanel Grid.Column="2" Spacing="4">
+                                <TextBlock Text="API URL" FontSize="12" Foreground="{StaticResource TextSecondaryBrush}" />
+                                <TextBox Text="{Binding BitwardenApiUrl}"
+                                         Watermark="https://api.bitwarden.com" />
+                            </StackPanel>
+                        </Grid>
+
+                        <TextBlock Text="Machine Account Access Token" FontSize="12" Foreground="{StaticResource TextSecondaryBrush}" />
+                        <TextBox Text="{Binding BitwardenAccessToken}" PasswordChar="●"
+                                 Watermark="0.xxxxxxxx.yyyyyyy:zzzzzz" />
+
+                        <TextBlock Text="Organization ID" FontSize="12" Foreground="{StaticResource TextSecondaryBrush}" />
+                        <TextBox Text="{Binding BitwardenOrganizationId}"
+                                 Watermark="00000000-0000-0000-0000-000000000000" />
+
+                        <TextBlock Text="Project ID (required — config secrets are stored in this project)" FontSize="12"
+                                   Foreground="{StaticResource TextSecondaryBrush}" />
+                        <TextBox Text="{Binding BitwardenProjectId}"
+                                 Watermark="00000000-0000-0000-0000-000000000000" />
+
+                        <TextBlock Text="Instance Project ID (optional — instance secrets like DB passwords go here; falls back to Project ID if empty)" FontSize="12"
+                                   Foreground="{StaticResource TextSecondaryBrush}" TextWrapping="Wrap" />
+                        <TextBox Text="{Binding BitwardenInstanceProjectId}"
+                                 Watermark="00000000-0000-0000-0000-000000000000 (leave empty to use default project)" />
+
+                        <StackPanel Orientation="Horizontal" Spacing="10" Margin="0,6,0,0">
+                            <Button Content="Save Bitwarden Config"
+                                    Classes="accent"
+                                    Command="{Binding SaveBitwardenLocalCommand}"
+                                    IsEnabled="{Binding !IsBusy}" />
+                            <Button Content="Test Connection"
+                                    Command="{Binding TestBitwardenConnectionCommand}"
+                                    IsEnabled="{Binding !IsBusy}" />
+                        </StackPanel>
+                    </StackPanel>
+                </Border>
+
+                <!-- ═══ Remaining settings — disabled until Bitwarden is configured ═══ -->
+                <StackPanel Spacing="16" IsEnabled="{Binding IsBitwardenConfigured}">
+
                 <!-- ═══ Git Repository ═══ -->
                 <Border Classes="card">
                     <StackPanel Spacing="8">
@@ -231,6 +291,116 @@
                     </StackPanel>
                 </Border>
 
+                <!-- ═══ Xibo Bootstrap OAuth2 ═══ -->
+                <Border Classes="card">
+                    <StackPanel Spacing="8">
+                        <StackPanel Orientation="Horizontal" Spacing="8" Margin="0,0,0,4">
+                            <Border Width="4" Height="20" CornerRadius="2" Background="#F97316" />
+                            <TextBlock Text="Xibo Bootstrap OAuth2" FontSize="16" FontWeight="SemiBold"
+                                       Foreground="#F97316" VerticalAlignment="Center" />
+                        </StackPanel>
+                        <TextBlock Text="A pre-configured Xibo OAuth2 client_credentials application used for post-install setup (creating admin users, registering OTS app, setting theme). Create once in the Xibo admin panel of any instance."
+                                   FontSize="12" Foreground="{StaticResource TextMutedBrush}" Margin="0,0,0,6"
+                                   TextWrapping="Wrap" />
+
+                        <TextBlock Text="Bootstrap Client ID" FontSize="12" Foreground="{StaticResource TextSecondaryBrush}" />
+                        <TextBox Text="{Binding XiboBootstrapClientId}"
+                                 Watermark="xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" />
+
+                        <TextBlock Text="Bootstrap Client Secret" FontSize="12" Foreground="{StaticResource TextSecondaryBrush}" />
+                        <TextBox Text="{Binding XiboBootstrapClientSecret}" PasswordChar="●" />
+
+                        <Button Content="Save &amp; Verify"
+                                Command="{Binding TestXiboBootstrapCommand}"
+                                IsEnabled="{Binding !IsBusy}"
+                                Margin="0,6,0,0" />
+                    </StackPanel>
+                </Border>
+
+                <!-- ═══ Authentik (SAML IdP) ═══ -->
+                <Border Classes="card">
+                    <StackPanel Spacing="8">
+                        <StackPanel Orientation="Horizontal" Spacing="8" Margin="0,0,0,4">
+                            <Border Width="4" Height="20" CornerRadius="2" Background="#FB923C" />
+                            <TextBlock Text="Authentik (SAML IdP)" FontSize="16" FontWeight="SemiBold"
+                                       Foreground="#FB923C" VerticalAlignment="Center" />
+                        </StackPanel>
+                        <TextBlock Text="Authentik identity provider settings. A SAML application is automatically provisioned in Authentik for each new instance during post-init, and a settings-custom.php file is deployed."
+                                   FontSize="12" Foreground="{StaticResource TextMutedBrush}" Margin="0,0,0,6"
+                                   TextWrapping="Wrap" />
+
+                        <TextBlock Text="Authentik Base URL" FontSize="12" Foreground="{StaticResource TextSecondaryBrush}" />
+                        <TextBox Text="{Binding AuthentikUrl}"
+                                 Watermark="https://id.oribi-tech.com" />
+
+                        <TextBlock Text="API Token" FontSize="12" Foreground="{StaticResource TextSecondaryBrush}" />
+                        <TextBox Text="{Binding AuthentikApiKey}" PasswordChar="●"
+                                 Watermark="Bearer token for /api/v3/" />
+
+                        <!-- Save & Test button -->
+                        <StackPanel Orientation="Horizontal" Spacing="10" Margin="0,8,0,0">
+                            <Button Content="Save &amp; Test Connection"
+                                    Classes="accent"
+                                    Command="{Binding SaveAndTestAuthentikCommand}"
+                                    IsEnabled="{Binding !IsAuthentikBusy}"
+                                    FontWeight="SemiBold" Padding="16,8" />
+                            <Button Content="Refresh Dropdowns"
+                                    Command="{Binding FetchAuthentikDropdownsCommand}"
+                                    IsEnabled="{Binding !IsAuthentikBusy}"
+                                    Padding="16,8" />
+                        </StackPanel>
+                        <TextBlock Text="{Binding AuthentikStatusMessage}"
+                                   FontSize="12" Foreground="{StaticResource TextSecondaryBrush}"
+                                   TextWrapping="Wrap" Margin="0,2,0,0" />
+
+                        <!-- Flow / Keypair dropdowns -->
+                        <Border Height="1" Background="{StaticResource BorderSubtleBrush}" Margin="0,12,0,4" />
+                        <TextBlock Text="Flows &amp; Keypairs" FontSize="13" FontWeight="SemiBold" Margin="0,4,0,4"
+                                   Foreground="{StaticResource TextPrimaryBrush}" />
+                        <TextBlock Text="These are loaded from your Authentik instance. Save &amp; Test to populate."
+                                   FontSize="12" Foreground="{StaticResource TextMutedBrush}" Margin="0,0,0,4"
+                                   TextWrapping="Wrap" />
+
+                        <TextBlock Text="Authorization Flow" FontSize="12" Foreground="{StaticResource TextSecondaryBrush}" />
+                        <ComboBox ItemsSource="{Binding AuthentikAuthorizationFlows}"
+                                  SelectedItem="{Binding SelectedAuthorizationFlow}"
+                                  HorizontalAlignment="Stretch"
+                                  PlaceholderText="(save &amp; test to load flows)">
+                            <ComboBox.ItemTemplate>
+                                <DataTemplate x:DataType="vm:SettingsViewModel">
+                                    <TextBlock Text="{Binding}" />
+                                </DataTemplate>
+                            </ComboBox.ItemTemplate>
+                        </ComboBox>
+
+                        <TextBlock Text="Invalidation Flow" FontSize="12" Foreground="{StaticResource TextSecondaryBrush}" />
+                        <ComboBox ItemsSource="{Binding AuthentikInvalidationFlows}"
+                                  SelectedItem="{Binding SelectedInvalidationFlow}"
+                                  HorizontalAlignment="Stretch"
+                                  PlaceholderText="(save &amp; test to load flows)">
+                            <ComboBox.ItemTemplate>
+                                <DataTemplate x:DataType="vm:SettingsViewModel">
+                                    <TextBlock Text="{Binding}" />
+                                </DataTemplate>
+                            </ComboBox.ItemTemplate>
+                        </ComboBox>
+
+                        <TextBlock Text="Signing Keypair" FontSize="12" Foreground="{StaticResource TextSecondaryBrush}" />
+                        <ComboBox ItemsSource="{Binding AuthentikKeypairs}"
+                                  SelectedItem="{Binding SelectedSigningKeypair}"
+                                  HorizontalAlignment="Stretch"
+                                  PlaceholderText="(save &amp; test to load keypairs)">
+                            <ComboBox.ItemTemplate>
+                                <DataTemplate x:DataType="vm:SettingsViewModel">
+                                    <TextBlock Text="{Binding}" />
+                                </DataTemplate>
+                            </ComboBox.ItemTemplate>
+                        </ComboBox>
+                    </StackPanel>
+                </Border>
+
+                </StackPanel> <!-- end of IsBitwardenConfigured wrapper -->
+
             </StackPanel>
         </ScrollViewer>
     </DockPanel>

OTSSignsOrchestrator.Desktop/appsettings.json

@@ -31,11 +31,19 @@
   "Database": {
     "Provider": "Sqlite"
   },
+  "Bitwarden": {
+    "IdentityUrl": "https://identity.bitwarden.com",
+    "ApiUrl": "https://api.bitwarden.com",
+    "AccessToken": "",
+    "OrganizationId": "",
+    "ProjectId": "",
+    "InstanceProjectId": ""
+  },
   "ConnectionStrings": {
     "Default": "Data Source=otssigns-desktop.db"
   },
   "InstanceDefaults": {
-    "CmsServerNameTemplate": "{abbrev}.ots-signs.com",
+    "CmsServerNameTemplate": "app.ots-signs.com",
     "ThemeHostPath": "/cms/ots-theme",
     "LibraryShareSubPath": "{abbrev}-cms-library",
     "MySqlDatabaseTemplate": "{abbrev}_cms_db",

OTSSignsOrchestrator.Server.Tests/ByoiCertExpiryThresholdTests.cs

@@ -0,0 +1,96 @@
+using OTSSignsOrchestrator.Server.Jobs;
+
+namespace OTSSignsOrchestrator.Server.Tests;
+
+public class ByoiCertExpiryThresholdTests
+{
+    // ── ShouldAlert ─────────────────────────────────────────────────────────
+
+    [Theory]
+    [InlineData(61, false)]   // 61 days: above all thresholds → no alert
+    [InlineData(60, true)]    // 60 days: at first threshold → alert
+    [InlineData(59, true)]    // 59 days: below 60 → alert
+    [InlineData(31, true)]    // 31 days: between 60 and 30 → alert
+    [InlineData(30, true)]    // 30 days: at second threshold → alert
+    [InlineData(8, true)]     // 8 days: between 30 and 7 → alert
+    [InlineData(7, true)]     // 7 days: at critical threshold → alert
+    [InlineData(1, true)]     // 1 day: below critical → alert
+    [InlineData(0, true)]     // 0 days: expiry day → alert
+    [InlineData(-1, true)]    // -1 day: already expired → alert
+    public void ShouldAlert_ReturnsCorrectValue(double daysRemaining, bool expected)
+    {
+        Assert.Equal(expected, ByoiCertExpiryJob.ShouldAlert(daysRemaining));
+    }
+
+    [Fact]
+    public void ShouldAlert_LargeValue_NoAlert()
+    {
+        Assert.False(ByoiCertExpiryJob.ShouldAlert(365));
+    }
+
+    // ── GetSeverity ─────────────────────────────────────────────────────────
+
+    [Theory]
+    [InlineData(60, "Warning")]
+    [InlineData(30, "Warning")]
+    [InlineData(8, "Warning")]
+    [InlineData(7.01, "Warning")]
+    [InlineData(7, "Critical")]    // Exactly at critical boundary
+    [InlineData(6, "Critical")]
+    [InlineData(1, "Critical")]
+    [InlineData(0, "Critical")]
+    [InlineData(-1, "Critical")]   // Already expired
+    public void GetSeverity_ReturnsCorrectLevel(double daysRemaining, string expected)
+    {
+        Assert.Equal(expected, ByoiCertExpiryJob.GetSeverity(daysRemaining));
+    }
+
+    // ── Threshold constants ─────────────────────────────────────────────────
+
+    [Fact]
+    public void AlertThresholds_AreDescending()
+    {
+        var thresholds = ByoiCertExpiryJob.AlertThresholdDays;
+        for (int i = 1; i < thresholds.Length; i++)
+        {
+            Assert.True(thresholds[i - 1] > thresholds[i],
+                $"Thresholds must be in descending order: {thresholds[i - 1]} should be > {thresholds[i]}");
+        }
+    }
+
+    [Fact]
+    public void CriticalThreshold_IsSmallestAlertThreshold()
+    {
+        Assert.Equal(
+            ByoiCertExpiryJob.CriticalThresholdDays,
+            ByoiCertExpiryJob.AlertThresholdDays[^1]);
+    }
+
+    // ── Boundary precision ──────────────────────────────────────────────────
+
+    [Fact]
+    public void ShouldAlert_JustAboveThreshold_NoAlert()
+    {
+        // 60.001 days — just above 60-day threshold
+        Assert.False(ByoiCertExpiryJob.ShouldAlert(60.001));
+    }
+
+    [Fact]
+    public void ShouldAlert_JustBelowThreshold_Alerts()
+    {
+        // 59.999 days — just below 60-day threshold
+        Assert.True(ByoiCertExpiryJob.ShouldAlert(59.999));
+    }
+
+    [Fact]
+    public void GetSeverity_JustAboveCritical_IsWarning()
+    {
+        Assert.Equal("Warning", ByoiCertExpiryJob.GetSeverity(7.001));
+    }
+
+    [Fact]
+    public void GetSeverity_ExactlyCritical_IsCritical()
+    {
+        Assert.Equal("Critical", ByoiCertExpiryJob.GetSeverity(7.0));
+    }
+}

OTSSignsOrchestrator.Server.Tests/OTSSignsOrchestrator.Server.Tests.csproj

@@ -0,0 +1,25 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net9.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="coverlet.collector" Version="6.0.2" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
+    <PackageReference Include="xunit" Version="2.9.2" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Using Include="Xunit" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\OTSSignsOrchestrator.Server\OTSSignsOrchestrator.Server.csproj" />
+  </ItemGroup>
+
+</Project>

OTSSignsOrchestrator.Server/Api/CustomerPortalApi.cs

@@ -0,0 +1,248 @@
+using System.Security.Cryptography.X509Certificates;
+using System.Text.Json;
+using Microsoft.AspNetCore.SignalR;
+using Microsoft.EntityFrameworkCore;
+using OTSSignsOrchestrator.Server.Clients;
+using OTSSignsOrchestrator.Server.Data;
+using OTSSignsOrchestrator.Server.Data.Entities;
+using OTSSignsOrchestrator.Server.Hubs;
+using OTSSignsOrchestrator.Server.Workers;
+
+namespace OTSSignsOrchestrator.Server.Api;
+
+public static class CustomerPortalApi
+{
+    private const int MinCertDaysRemaining = 30;
+
+    public static void MapCustomerPortalEndpoints(this WebApplication app)
+    {
+        var portal = app.MapGroup("/api/portal/byoi")
+            .RequireAuthorization("CustomerPortal");
+
+        portal.MapPost("/configure", HandleConfigureByoi);
+        portal.MapGet("/sp-metadata", HandleGetSpMetadata);
+        portal.MapPost("/rotate-cert", HandleRotateCert);
+    }
+
+    // ── POST /api/portal/byoi/configure ─────────────────────────────────────
+    private static async Task<IResult> HandleConfigureByoi(
+        ConfigureByoiRequest req,
+        OrchestratorDbContext db,
+        IHubContext<FleetHub, IFleetClient> hub,
+        HttpContext httpContext,
+        ILogger<ConfigureByoiRequest> logger)
+    {
+        // Resolve customer from the authenticated JWT
+        var customer = await ResolveCustomerAsync(httpContext, db);
+        if (customer is null)
+            return Results.Forbid();
+
+        if (customer.Plan != CustomerPlan.Pro)
+            return Results.Problem("BYOI SAML is only available for Pro tier customers.", statusCode: 403);
+
+        // Validate cert PEM
+        var certValidation = ValidateCertPem(req.CertPem);
+        if (certValidation is not null)
+            return Results.ValidationProblem(
+                new Dictionary<string, string[]> { ["certPem"] = [certValidation] });
+
+        // Validate required fields
+        var errors = new Dictionary<string, string[]>();
+        if (string.IsNullOrWhiteSpace(req.SsoUrl))
+            errors["ssoUrl"] = ["ssoUrl is required."];
+        if (string.IsNullOrWhiteSpace(req.IdpEntityId))
+            errors["idpEntityId"] = ["idpEntityId is required."];
+        if (errors.Count > 0)
+            return Results.ValidationProblem(errors);
+
+        // Create a provision-byoi Job
+        var parametersJson = JsonSerializer.Serialize(new ByoiParameters
+        {
+            CustomerCertPem = req.CertPem!,
+            CustomerSsoUrl = req.SsoUrl!,
+            CustomerIdpEntityId = req.IdpEntityId!,
+            CustomerSloUrl = req.SloUrl,
+        });
+
+        var job = new Job
+        {
+            Id = Guid.NewGuid(),
+            CustomerId = customer.Id,
+            JobType = "provision-byoi",
+            Status = JobStatus.Queued,
+            TriggeredBy = $"customer-portal:{customer.AdminEmail}",
+            Parameters = parametersJson,
+            CreatedAt = DateTime.UtcNow,
+        };
+
+        db.Jobs.Add(job);
+        await db.SaveChangesAsync();
+
+        logger.LogInformation("BYOI configure job {JobId} created for customer {CustomerId}",
+            job.Id, customer.Id);
+
+        await hub.Clients.All.SendJobCreated(
+            job.Id.ToString(), customer.Abbreviation, job.JobType);
+
+        return Results.Created($"/api/jobs/{job.Id}", new { jobId = job.Id });
+    }
+
+    // ── GET /api/portal/byoi/sp-metadata ────────────────────────────────────
+    private static async Task<IResult> HandleGetSpMetadata(
+        OrchestratorDbContext db,
+        IAuthentikClient authentikClient,
+        HttpContext httpContext,
+        ILogger<ConfigureByoiRequest> logger)
+    {
+        var customer = await ResolveCustomerAsync(httpContext, db);
+        if (customer is null)
+            return Results.Forbid();
+
+        var instance = customer.Instances.FirstOrDefault();
+        if (instance is null)
+            return Results.NotFound("No instance found for this customer.");
+
+        var byoiConfig = await db.ByoiConfigs
+            .AsNoTracking()
+            .FirstOrDefaultAsync(b => b.InstanceId == instance.Id && b.Enabled);
+
+        if (byoiConfig is null)
+            return Results.NotFound("No BYOI configuration found for this instance.");
+
+        var metadataResponse = await authentikClient.GetSamlSourceMetadataAsync(byoiConfig.Slug);
+        if (!metadataResponse.IsSuccessStatusCode || metadataResponse.Content is null)
+        {
+            logger.LogError("Failed to fetch SP metadata for slug {Slug}: {Error}",
+                byoiConfig.Slug, metadataResponse.Error?.Content ?? metadataResponse.ReasonPhrase);
+            return Results.Problem("Failed to retrieve SP metadata from Authentik.", statusCode: 502);
+        }
+
+        return Results.Content(metadataResponse.Content, "application/xml");
+    }
+
+    // ── POST /api/portal/byoi/rotate-cert ───────────────────────────────────
+    private static async Task<IResult> HandleRotateCert(
+        RotateCertRequest req,
+        OrchestratorDbContext db,
+        IHubContext<FleetHub, IFleetClient> hub,
+        HttpContext httpContext,
+        ILogger<RotateCertRequest> logger)
+    {
+        var customer = await ResolveCustomerAsync(httpContext, db);
+        if (customer is null)
+            return Results.Forbid();
+
+        if (customer.Plan != CustomerPlan.Pro)
+            return Results.Problem("BYOI SAML is only available for Pro tier customers.", statusCode: 403);
+
+        // Validate cert PEM
+        var certValidation = ValidateCertPem(req.CertPem);
+        if (certValidation is not null)
+            return Results.ValidationProblem(
+                new Dictionary<string, string[]> { ["certPem"] = [certValidation] });
+
+        var instance = customer.Instances.FirstOrDefault();
+        if (instance is null)
+            return Results.NotFound("No instance found for this customer.");
+
+        var existingConfig = await db.ByoiConfigs
+            .FirstOrDefaultAsync(b => b.InstanceId == instance.Id && b.Enabled);
+
+        if (existingConfig is null)
+            return Results.NotFound("No active BYOI configuration found to rotate.");
+
+        // Create a re-provisioning job with the new cert
+        var parametersJson = JsonSerializer.Serialize(new ByoiParameters
+        {
+            CustomerCertPem = req.CertPem!,
+            CustomerSsoUrl = existingConfig.SsoUrl,
+            CustomerIdpEntityId = existingConfig.EntityId,
+            CustomerSloUrl = null,
+        });
+
+        var job = new Job
+        {
+            Id = Guid.NewGuid(),
+            CustomerId = customer.Id,
+            JobType = "provision-byoi",
+            Status = JobStatus.Queued,
+            TriggeredBy = $"customer-portal:cert-rotate:{customer.AdminEmail}",
+            Parameters = parametersJson,
+            CreatedAt = DateTime.UtcNow,
+        };
+
+        db.Jobs.Add(job);
+        await db.SaveChangesAsync();
+
+        logger.LogInformation("BYOI cert rotate job {JobId} created for customer {CustomerId}",
+            job.Id, customer.Id);
+
+        await hub.Clients.All.SendJobCreated(
+            job.Id.ToString(), customer.Abbreviation, job.JobType);
+
+        return Results.Ok(new { jobId = job.Id });
+    }
+
+    // ── Helpers ─────────────────────────────────────────────────────────────
+
+    /// <summary>
+    /// Validates a PEM certificate string. Returns an error message on failure, or null if valid.
+    /// Rejects self-signed, expired, and certs expiring in &lt; 30 days.
+    /// </summary>
+    private static string? ValidateCertPem(string? certPem)
+    {
+        if (string.IsNullOrWhiteSpace(certPem))
+            return "certPem is required.";
+
+        X509Certificate2 cert;
+        try
+        {
+            var base64 = certPem
+                .Replace("-----BEGIN CERTIFICATE-----", "")
+                .Replace("-----END CERTIFICATE-----", "")
+                .Replace("\r", "")
+                .Replace("\n", "")
+                .Trim();
+
+            cert = X509CertificateLoader.LoadCertificate(Convert.FromBase64String(base64));
+        }
+        catch (Exception)
+        {
+            return "Invalid certificate PEM format.";
+        }
+
+        using (cert)
+        {
+            if (cert.NotAfter.ToUniversalTime() < DateTime.UtcNow)
+                return "Certificate has already expired.";
+
+            if ((cert.NotAfter.ToUniversalTime() - DateTime.UtcNow).TotalDays < MinCertDaysRemaining)
+                return $"Certificate expires in less than {MinCertDaysRemaining} days. Provide a certificate with a longer validity period.";
+
+            // Reject self-signed: issuer == subject
+            if (string.Equals(cert.Issuer, cert.Subject, StringComparison.OrdinalIgnoreCase))
+                return "Self-signed certificates are not accepted. Provide a CA-signed certificate.";
+        }
+
+        return null;
+    }
+
+    /// <summary>
+    /// Resolves the current customer from the authenticated JWT claims.
+    /// Expects a "customer_id" claim in the token.
+    /// </summary>
+    private static async Task<Customer?> ResolveCustomerAsync(HttpContext httpContext, OrchestratorDbContext db)
+    {
+        var customerIdClaim = httpContext.User.FindFirst("customer_id")?.Value;
+        if (customerIdClaim is null || !Guid.TryParse(customerIdClaim, out var customerId))
+            return null;
+
+        return await db.Customers
+            .Include(c => c.Instances)
+            .FirstOrDefaultAsync(c => c.Id == customerId);
+    }
+}
+
+// ── Request DTOs ────────────────────────────────────────────────────────────
+public record ConfigureByoiRequest(string? CertPem, string? SsoUrl, string? IdpEntityId, string? SloUrl);
+public record RotateCertRequest(string? CertPem);

OTSSignsOrchestrator.Server/Api/FleetApi.cs

@@ -0,0 +1,245 @@
+using Microsoft.AspNetCore.SignalR;
+using Microsoft.EntityFrameworkCore;
+using OTSSignsOrchestrator.Server.Data;
+using OTSSignsOrchestrator.Server.Data.Entities;
+using OTSSignsOrchestrator.Server.Hubs;
+using OTSSignsOrchestrator.Server.Reports;
+
+namespace OTSSignsOrchestrator.Server.Api;
+
+public static class FleetApi
+{
+    public static void MapFleetEndpoints(this WebApplication app)
+    {
+        var fleet = app.MapGroup("/api/fleet").RequireAuthorization();
+        fleet.MapGet("/", GetFleetSummary);
+        fleet.MapGet("/{id:guid}", GetFleetDetail);
+
+        var jobs = app.MapGroup("/api/jobs").RequireAuthorization();
+        jobs.MapPost("/", CreateJob);
+        jobs.MapGet("/{id:guid}", GetJob);
+
+        app.MapGet("/api/health", () => Results.Ok(new { status = "healthy" }));
+
+        // ── Report endpoints (admin only) ────────────────────────────────────
+        var reports = app.MapGroup("/api/reports").RequireAuthorization()
+            .RequireAuthorization(policy => policy.RequireRole("admin"));
+
+        reports.MapGet("/billing", GetBillingCsv);
+        reports.MapGet("/version-drift", GetVersionDriftCsv);
+        reports.MapGet("/fleet-health", GetFleetHealthPdf);
+        reports.MapGet("/customer/{id:guid}/usage", GetCustomerUsagePdf);
+
+        fleet.MapPost("/bulk/export-fleet-report", ExportFleetReport)
+            .RequireAuthorization(policy => policy.RequireRole("admin"));
+    }
+
+    // ── GET /api/fleet ──────────────────────────────────────────────────────
+    private static async Task<IResult> GetFleetSummary(OrchestratorDbContext db)
+    {
+        var customers = await db.Customers
+            .AsNoTracking()
+            .Include(c => c.Instances)
+            .Include(c => c.Jobs)
+            .ToListAsync();
+
+        // Get latest health event per instance in one query
+        var latestHealth = await db.HealthEvents
+            .AsNoTracking()
+            .GroupBy(h => h.InstanceId)
+            .Select(g => g.OrderByDescending(h => h.OccurredAt).First())
+            .ToDictionaryAsync(h => h.InstanceId);
+
+        var result = customers.Select(c =>
+        {
+            var primaryInstance = c.Instances.FirstOrDefault();
+            HealthEvent? health = null;
+            if (primaryInstance is not null)
+                latestHealth.TryGetValue(primaryInstance.Id, out health);
+
+            return new FleetSummaryDto
+            {
+                CustomerId = c.Id,
+                Abbreviation = c.Abbreviation,
+                CompanyName = c.CompanyName,
+                Plan = c.Plan.ToString(),
+                ScreenCount = c.ScreenCount,
+                HealthStatus = health?.Status.ToString() ?? primaryInstance?.HealthStatus.ToString() ?? "Unknown",
+                LastHealthCheck = health?.OccurredAt ?? primaryInstance?.LastHealthCheck,
+                HasRunningJob = c.Jobs.Any(j => j.Status == JobStatus.Running || j.Status == JobStatus.Queued),
+            };
+        }).ToArray();
+
+        return Results.Ok(result);
+    }
+
+    // ── GET /api/fleet/{id} ─────────────────────────────────────────────────
+    private static async Task<IResult> GetFleetDetail(Guid id, OrchestratorDbContext db)
+    {
+        var customer = await db.Customers
+            .AsNoTracking()
+            .Include(c => c.Instances)
+            .Include(c => c.Jobs.Where(j => j.Status == JobStatus.Running || j.Status == JobStatus.Queued))
+            .FirstOrDefaultAsync(c => c.Id == id);
+
+        if (customer is null)
+            return Results.NotFound();
+
+        return Results.Ok(new
+        {
+            customer.Id,
+            customer.Abbreviation,
+            customer.CompanyName,
+            customer.AdminEmail,
+            Plan = customer.Plan.ToString(),
+            customer.ScreenCount,
+            Status = customer.Status.ToString(),
+            customer.CreatedAt,
+            Instances = customer.Instances.Select(i => new
+            {
+                i.Id,
+                i.XiboUrl,
+                i.DockerStackName,
+                HealthStatus = i.HealthStatus.ToString(),
+                i.LastHealthCheck,
+            }),
+            ActiveJobs = customer.Jobs.Select(j => new
+            {
+                j.Id,
+                j.JobType,
+                Status = j.Status.ToString(),
+                j.CreatedAt,
+                j.StartedAt,
+            }),
+        });
+    }
+
+    // ── POST /api/jobs ──────────────────────────────────────────────────────
+    private static async Task<IResult> CreateJob(
+        CreateJobRequest req,
+        OrchestratorDbContext db,
+        IHubContext<FleetHub, IFleetClient> hub,
+        ILogger<CreateJobRequest> logger)
+    {
+        var customer = await db.Customers.FindAsync(req.CustomerId);
+        if (customer is null)
+            return Results.NotFound("Customer not found.");
+
+        var job = new Job
+        {
+            Id = Guid.NewGuid(),
+            CustomerId = req.CustomerId,
+            JobType = req.JobType,
+            Status = JobStatus.Queued,
+            TriggeredBy = "operator",
+            Parameters = req.Parameters,
+            CreatedAt = DateTime.UtcNow,
+        };
+
+        db.Jobs.Add(job);
+        await db.SaveChangesAsync();
+
+        logger.LogInformation("Job created: {JobId} type={JobType} customer={CustomerId}",
+            job.Id, job.JobType, job.CustomerId);
+
+        await hub.Clients.All.SendJobCreated(job.Id.ToString(), customer.Abbreviation, job.JobType);
+
+        return Results.Created($"/api/jobs/{job.Id}", new { job.Id, job.JobType, Status = job.Status.ToString() });
+    }
+
+    // ── GET /api/jobs/{id} ──────────────────────────────────────────────────
+    private static async Task<IResult> GetJob(Guid id, OrchestratorDbContext db)
+    {
+        var job = await db.Jobs
+            .AsNoTracking()
+            .Include(j => j.Steps.OrderBy(s => s.StartedAt))
+            .FirstOrDefaultAsync(j => j.Id == id);
+
+        if (job is null)
+            return Results.NotFound();
+
+        return Results.Ok(new
+        {
+            job.Id,
+            job.CustomerId,
+            job.JobType,
+            Status = job.Status.ToString(),
+            job.TriggeredBy,
+            job.Parameters,
+            job.CreatedAt,
+            job.StartedAt,
+            job.CompletedAt,
+            job.ErrorMessage,
+            Steps = job.Steps.Select(s => new
+            {
+                s.Id,
+                s.StepName,
+                Status = s.Status.ToString(),
+                s.LogOutput,
+                s.StartedAt,
+                s.CompletedAt,
+            }),
+        });
+    }
+
+    // ── GET /api/reports/billing?from=&to= ──────────────────────────────────
+    private static async Task<IResult> GetBillingCsv(
+        DateOnly from, DateOnly to, BillingReportService billing)
+    {
+        var csv = await billing.GenerateBillingCsvAsync(from, to);
+        return Results.File(csv, "text/csv", $"billing-{from:yyyy-MM-dd}-{to:yyyy-MM-dd}.csv");
+    }
+
+    // ── GET /api/reports/version-drift ──────────────────────────────────────
+    private static async Task<IResult> GetVersionDriftCsv(BillingReportService billing)
+    {
+        var csv = await billing.GenerateVersionDriftCsvAsync();
+        return Results.File(csv, "text/csv", $"version-drift-{DateTime.UtcNow:yyyy-MM-dd}.csv");
+    }
+
+    // ── GET /api/reports/fleet-health?from=&to= ─────────────────────────────
+    private static async Task<IResult> GetFleetHealthPdf(
+        DateOnly from, DateOnly to, FleetHealthPdfService pdfService)
+    {
+        var pdf = await pdfService.GenerateFleetHealthPdfAsync(from, to);
+        return Results.File(pdf, "application/pdf", $"fleet-health-{from:yyyy-MM-dd}-{to:yyyy-MM-dd}.pdf");
+    }
+
+    // ── GET /api/reports/customer/{id}/usage?from=&to= ──────────────────────
+    private static async Task<IResult> GetCustomerUsagePdf(
+        Guid id, DateOnly from, DateOnly to, FleetHealthPdfService pdfService)
+    {
+        try
+        {
+            var pdf = await pdfService.GenerateCustomerUsagePdfAsync(id, from, to);
+            return Results.File(pdf, "application/pdf", $"customer-usage-{id}-{from:yyyy-MM-dd}-{to:yyyy-MM-dd}.pdf");
+        }
+        catch (InvalidOperationException ex)
+        {
+            return Results.NotFound(ex.Message);
+        }
+    }
+
+    // ── POST /api/fleet/bulk/export-fleet-report ────────────────────────────
+    private static async Task<IResult> ExportFleetReport(FleetHealthPdfService pdfService)
+    {
+        var to = DateOnly.FromDateTime(DateTime.UtcNow);
+        var from = to.AddDays(-7);
+        var pdf = await pdfService.GenerateFleetHealthPdfAsync(from, to);
+        return Results.File(pdf, "application/pdf", $"fleet-health-{from:yyyy-MM-dd}-{to:yyyy-MM-dd}.pdf");
+    }
+}
+
+public record FleetSummaryDto
+{
+    public Guid CustomerId { get; init; }
+    public string Abbreviation { get; init; } = string.Empty;
+    public string CompanyName { get; init; } = string.Empty;
+    public string Plan { get; init; } = string.Empty;
+    public int ScreenCount { get; init; }
+    public string HealthStatus { get; init; } = "Unknown";
+    public DateTime? LastHealthCheck { get; init; }
+    public bool HasRunningJob { get; init; }
+}
+
+public record CreateJobRequest(Guid CustomerId, string JobType, string? Parameters);

OTSSignsOrchestrator.Server/Api/SignupApi.cs

@@ -0,0 +1,173 @@
+using System.ComponentModel.DataAnnotations;
+using Microsoft.AspNetCore.SignalR;
+using Microsoft.EntityFrameworkCore;
+using OTSSignsOrchestrator.Server.Data;
+using OTSSignsOrchestrator.Server.Data.Entities;
+using OTSSignsOrchestrator.Server.Hubs;
+using Stripe.Checkout;
+
+namespace OTSSignsOrchestrator.Server.Api;
+
+public static class SignupApi
+{
+    public static void MapSignupEndpoints(this WebApplication app)
+    {
+        app.MapPost("/api/signup/initiate", HandleInitiate)
+            .RequireRateLimiting("signup");
+
+        app.MapGet("/api/signup/status/{token:guid}", HandleStatus);
+    }
+
+    private static async Task<IResult> HandleInitiate(
+        SignupRequest req,
+        OrchestratorDbContext db,
+        IConfiguration config,
+        ILogger<SignupRequest> logger)
+    {
+        // ── Validation ──────────────────────────────────────────────────────
+        var errors = new List<string>();
+        if (string.IsNullOrWhiteSpace(req.CompanyName))
+            errors.Add("companyName is required.");
+        if (string.IsNullOrWhiteSpace(req.AdminEmail) || !new EmailAddressAttribute().IsValid(req.AdminEmail))
+            errors.Add("A valid adminEmail is required.");
+        if (string.IsNullOrWhiteSpace(req.Plan) ||
+            !req.Plan.Equals("Essentials", StringComparison.OrdinalIgnoreCase) &&
+            !req.Plan.Equals("Pro", StringComparison.OrdinalIgnoreCase))
+            errors.Add("plan must be 'Essentials' or 'Pro'.");
+        if (req.ScreenCount < 1)
+            errors.Add("screenCount must be at least 1.");
+        if (req.Plan?.Equals("Essentials", StringComparison.OrdinalIgnoreCase) == true && req.ScreenCount > 50)
+            errors.Add("Essentials plan supports a maximum of 50 screens.");
+        if (string.IsNullOrWhiteSpace(req.BillingFrequency) ||
+            !req.BillingFrequency.Equals("monthly", StringComparison.OrdinalIgnoreCase) &&
+            !req.BillingFrequency.Equals("annual", StringComparison.OrdinalIgnoreCase))
+            errors.Add("billingFrequency must be 'monthly' or 'annual'.");
+
+        if (errors.Count > 0)
+            return Results.ValidationProblem(
+                errors.ToDictionary(e => e, _ => new[] { "Validation failed." }));
+
+        // ── Create pending customer ─────────────────────────────────────────
+        var plan = Enum.Parse<CustomerPlan>(req.Plan!, true);
+        var customer = new Customer
+        {
+            Id = Guid.NewGuid(),
+            CompanyName = req.CompanyName!.Trim(),
+            AdminEmail = req.AdminEmail!.Trim().ToLowerInvariant(),
+            AdminFirstName = req.AdminFirstName?.Trim() ?? string.Empty,
+            AdminLastName = req.AdminLastName?.Trim() ?? string.Empty,
+            Plan = plan,
+            ScreenCount = req.ScreenCount,
+            Status = CustomerStatus.PendingPayment,
+            CreatedAt = DateTime.UtcNow,
+        };
+
+        db.Customers.Add(customer);
+        await db.SaveChangesAsync();
+
+        // ── Stripe Checkout Session ─────────────────────────────────────────
+        var priceKey = $"Stripe:Prices:{req.Plan}:{req.BillingFrequency}".ToLowerInvariant();
+        var priceId = config[priceKey];
+        if (string.IsNullOrWhiteSpace(priceId))
+        {
+            logger.LogError("Stripe price ID not configured for key {PriceKey}", priceKey);
+            return Results.Problem("Billing configuration error. Contact support.", statusCode: 500);
+        }
+
+        var sessionOptions = new SessionCreateOptions
+        {
+            Mode = "subscription",
+            CustomerEmail = customer.AdminEmail,
+            LineItems = new List<SessionLineItemOptions>
+            {
+                new()
+                {
+                    Price = priceId,
+                    Quantity = req.ScreenCount,
+                },
+            },
+            SubscriptionData = new SessionSubscriptionDataOptions
+            {
+                TrialPeriodDays = 14,
+            },
+            Metadata = new Dictionary<string, string>
+            {
+                ["ots_customer_id"] = customer.Id.ToString(),
+                ["company_name"] = customer.CompanyName,
+                ["admin_email"] = customer.AdminEmail,
+                ["admin_first_name"] = customer.AdminFirstName,
+                ["admin_last_name"] = customer.AdminLastName,
+                ["plan"] = req.Plan!,
+                ["screen_count"] = req.ScreenCount.ToString(),
+                ["billing_frequency"] = req.BillingFrequency!,
+            },
+            SuccessUrl = config["Stripe:SuccessUrl"] ?? "https://app.ots-signs.com/signup/success?session_id={CHECKOUT_SESSION_ID}",
+            CancelUrl = config["Stripe:CancelUrl"] ?? "https://app.ots-signs.com/signup/cancel",
+        };
+
+        var sessionService = new SessionService();
+        var session = await sessionService.CreateAsync(sessionOptions);
+
+        customer.StripeCheckoutSessionId = session.Id;
+        await db.SaveChangesAsync();
+
+        logger.LogInformation(
+            "Signup initiated: customer={CustomerId}, company={Company}, plan={Plan}, screens={Screens}",
+            customer.Id, customer.CompanyName, req.Plan, req.ScreenCount);
+
+        return Results.Ok(new { checkoutUrl = session.Url, statusToken = customer.Id });
+    }
+
+    private static async Task<IResult> HandleStatus(
+        Guid token,
+        OrchestratorDbContext db)
+    {
+        var customer = await db.Customers
+            .AsNoTracking()
+            .FirstOrDefaultAsync(c => c.Id == token);
+
+        if (customer is null)
+            return Results.NotFound();
+
+        // Find latest provisioning job if any
+        var job = await db.Jobs
+            .AsNoTracking()
+            .Where(j => j.CustomerId == customer.Id && j.JobType == "provision")
+            .OrderByDescending(j => j.CreatedAt)
+            .FirstOrDefaultAsync();
+
+        int pctComplete = customer.Status switch
+        {
+            CustomerStatus.PendingPayment => 0,
+            CustomerStatus.Provisioning => job?.Status switch
+            {
+                JobStatus.Running => 50,
+                JobStatus.Completed => 100,
+                _ => 10,
+            },
+            CustomerStatus.Active => 100,
+            _ => 0,
+        };
+
+        return Results.Ok(new
+        {
+            status = customer.Status.ToString(),
+            provisioningStep = job?.Steps
+                .Where(s => s.Status == JobStepStatus.Running)
+                .Select(s => s.StepName)
+                .FirstOrDefault() ?? (customer.Status == CustomerStatus.Active ? "complete" : "waiting"),
+            pctComplete,
+        });
+    }
+}
+
+public record SignupRequest(
+    string? CompanyName,
+    string? AdminFirstName,
+    string? AdminLastName,
+    string? AdminEmail,
+    string? Phone,
+    string? Plan,
+    int ScreenCount,
+    string? BillingFrequency,
+    string? PromoCode);

OTSSignsOrchestrator.Server/Auth/JwtOptions.cs

@@ -0,0 +1,10 @@
+namespace OTSSignsOrchestrator.Server.Auth;
+
+public class JwtOptions
+{
+    public const string Section = "Jwt";
+
+    public string Key { get; set; } = string.Empty;
+    public string Issuer { get; set; } = "OTSSignsOrchestrator";
+    public string Audience { get; set; } = "OTSSignsOrchestrator";
+}

OTSSignsOrchestrator.Server/Auth/OperatorAuthService.cs

@@ -0,0 +1,102 @@
+using System.IdentityModel.Tokens.Jwt;
+using System.Security.Claims;
+using System.Security.Cryptography;
+using System.Text;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Options;
+using Microsoft.IdentityModel.Tokens;
+using OTSSignsOrchestrator.Server.Data;
+using OTSSignsOrchestrator.Server.Data.Entities;
+
+namespace OTSSignsOrchestrator.Server.Auth;
+
+public class OperatorAuthService
+{
+    private readonly OrchestratorDbContext _db;
+    private readonly JwtOptions _jwt;
+    private readonly ILogger<OperatorAuthService> _logger;
+
+    public OperatorAuthService(
+        OrchestratorDbContext db,
+        IOptions<JwtOptions> jwt,
+        ILogger<OperatorAuthService> logger)
+    {
+        _db = db;
+        _jwt = jwt.Value;
+        _logger = logger;
+    }
+
+    public async Task<(string Jwt, string RefreshToken)> LoginAsync(string email, string password)
+    {
+        var op = await _db.Operators.FirstOrDefaultAsync(
+            o => o.Email == email.Trim().ToLowerInvariant());
+
+        if (op is null || !BCrypt.Net.BCrypt.Verify(password, op.PasswordHash))
+        {
+            _logger.LogWarning("Login failed for {Email}", email);
+            throw new UnauthorizedAccessException("Invalid email or password.");
+        }
+
+        _logger.LogInformation("Operator {Email} logged in", op.Email);
+        var jwt = GenerateJwt(op);
+        var refresh = await CreateRefreshTokenAsync(op.Id);
+        return (jwt, refresh);
+    }
+
+    public async Task<string> RefreshAsync(string refreshToken)
+    {
+        var token = await _db.RefreshTokens
+            .Include(r => r.Operator)
+            .FirstOrDefaultAsync(r => r.Token == refreshToken);
+
+        if (token is null || token.RevokedAt is not null || token.ExpiresAt < DateTime.UtcNow)
+            throw new UnauthorizedAccessException("Invalid or expired refresh token.");
+
+        // Revoke the used token (single-use rotation)
+        token.RevokedAt = DateTime.UtcNow;
+        await _db.SaveChangesAsync();
+
+        _logger.LogInformation("Refresh token used for operator {Email}", token.Operator.Email);
+        return GenerateJwt(token.Operator);
+    }
+
+    private string GenerateJwt(Operator op)
+    {
+        var key = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(_jwt.Key));
+        var creds = new SigningCredentials(key, SecurityAlgorithms.HmacSha256);
+
+        var claims = new[]
+        {
+            new Claim(JwtRegisteredClaimNames.Sub, op.Id.ToString()),
+            new Claim(JwtRegisteredClaimNames.Email, op.Email),
+            new Claim(ClaimTypes.Name, op.Email),
+            new Claim(ClaimTypes.Role, op.Role.ToString()),
+            new Claim(JwtRegisteredClaimNames.Jti, Guid.NewGuid().ToString()),
+        };
+
+        var token = new JwtSecurityToken(
+            issuer: _jwt.Issuer,
+            audience: _jwt.Audience,
+            claims: claims,
+            expires: DateTime.UtcNow.AddMinutes(15),
+            signingCredentials: creds);
+
+        return new JwtSecurityTokenHandler().WriteToken(token);
+    }
+
+    private async Task<string> CreateRefreshTokenAsync(Guid operatorId)
+    {
+        var tokenValue = Convert.ToBase64String(RandomNumberGenerator.GetBytes(64));
+
+        _db.RefreshTokens.Add(new RefreshToken
+        {
+            Id = Guid.NewGuid(),
+            OperatorId = operatorId,
+            Token = tokenValue,
+            ExpiresAt = DateTime.UtcNow.AddDays(7),
+        });
+
+        await _db.SaveChangesAsync();
+        return tokenValue;
+    }
+}

OTSSignsOrchestrator.Server/Clients/IAuthentikClient.cs

@@ -0,0 +1,146 @@
+using Refit;
+
+namespace OTSSignsOrchestrator.Server.Clients;
+
+// ── Configuration ───────────────────────────────────────────────────────────
+public sealed class AuthentikOptions
+{
+    public const string Section = "Authentik";
+
+    public string BaseUrl { get; set; } = string.Empty;
+    public string ApiToken { get; set; } = string.Empty;
+
+    /// <summary>UUID of the OTS signing certificate-key pair used for all SAML sources.</summary>
+    public string OtsSigningKpId { get; set; } = string.Empty;
+
+    /// <summary>Authentik pre-authentication flow slug for SAML sources (e.g. "default-source-pre-authentication").</summary>
+    public string SourcePreAuthFlowSlug { get; set; } = "default-source-pre-authentication";
+
+    /// <summary>Authentik authentication flow slug for SAML sources (e.g. "default-source-authentication").</summary>
+    public string SourceAuthFlowSlug { get; set; } = "default-source-authentication";
+}
+
+// ── Request DTOs ────────────────────────────────────────────────────────────
+public record CreateSamlProviderRequest(
+    string Name,
+    string AuthorizationFlow,
+    string AcsUrl,
+    string Issuer,
+    string SpBinding,
+    string Audience,
+    string? SigningKp);
+
+public record CreateAuthentikApplicationRequest(
+    string Name,
+    string Slug,
+    string Provider,
+    string? MetaLaunchUrl);
+
+public record CreateAuthentikGroupRequest(
+    string Name,
+    bool? IsSuperuser,
+    string? Parent);
+
+public record CreateFlowRequest(
+    string Name,
+    bool? SingleUse,
+    DateTimeOffset? Expires);
+
+public record CreateAuthentikUserRequest(
+    string Username,
+    string Name,
+    string Email,
+    string[] Groups);
+
+public record ImportCertRequest(
+    string Name,
+    string CertificateData,
+    string? KeyData);
+
+public record CreateSamlSourceRequest(
+    string Name,
+    string Slug,
+    string SsoUrl,
+    string? SloUrl,
+    string Issuer,
+    string? SigningKp,
+    string? VerificationKp,
+    string BindingType,
+    string NameIdPolicy,
+    string PreAuthenticationFlow,
+    string AuthenticationFlow,
+    bool AllowIdpInitiated);
+
+// ── Response DTOs ───────────────────────────────────────────────────────────
+/// <summary>Authentik paginated list response. Results contain dictionaries with entity fields.</summary>
+public record AuthentikPagedResult(
+    List<Dictionary<string, object>> Results);
+
+// ── Authentik Refit Interface ───────────────────────────────────────────────
+// One global Authentik instance serves all tenants.
+[Headers("Authorization: Bearer")]
+public interface IAuthentikClient
+{
+    // ── SAML Providers ──────────────────────────────────────────────────────
+    [Post("/api/v3/providers/saml/")]
+    Task<ApiResponse<Dictionary<string, object>>> CreateSamlProviderAsync(
+        [Body] CreateSamlProviderRequest body);
+
+    [Get("/api/v3/providers/saml/{id}/")]
+    Task<ApiResponse<Dictionary<string, object>>> GetSamlProviderAsync(int id);
+
+    [Delete("/api/v3/providers/saml/{id}/")]
+    Task DeleteSamlProviderAsync(int id);
+
+    // ── Applications ────────────────────────────────────────────────────────
+    [Post("/api/v3/core/applications/")]
+    Task<ApiResponse<Dictionary<string, object>>> CreateApplicationAsync(
+        [Body] CreateAuthentikApplicationRequest body);
+
+    [Delete("/api/v3/core/applications/{slug}/")]
+    Task DeleteApplicationAsync(string slug);
+
+    // ── Groups ──────────────────────────────────────────────────────────────
+    [Get("/api/v3/core/groups/")]
+    Task<ApiResponse<AuthentikPagedResult>> ListGroupsAsync([AliasAs("search")] string? search = null);
+
+    [Post("/api/v3/core/groups/")]
+    Task<ApiResponse<Dictionary<string, object>>> CreateGroupAsync(
+        [Body] CreateAuthentikGroupRequest body);
+
+    [Delete("/api/v3/core/groups/{id}/")]
+    Task DeleteGroupAsync(string id);
+
+    // ── Invitations ─────────────────────────────────────────────────────────
+    [Post("/api/v3/stages/invitation/invitations/")]
+    Task<ApiResponse<Dictionary<string, object>>> CreateInvitationAsync(
+        [Body] CreateFlowRequest body);
+
+    // ── Users ───────────────────────────────────────────────────────────────
+    [Post("/api/v3/core/users/")]
+    Task<ApiResponse<Dictionary<string, object>>> CreateUserAsync(
+        [Body] CreateAuthentikUserRequest body);
+
+    // ── Health ──────────────────────────────────────────────────────────────
+    [Get("/api/v3/-/health/ready/")]
+    Task<ApiResponse<object>> CheckHealthAsync();
+
+    // ── Certificates ────────────────────────────────────────────────────────
+    [Get("/api/v3/crypto/certificatekeypairs/{kpId}/")]
+    Task<ApiResponse<Dictionary<string, object>>> GetCertificateKeyPairAsync(string kpId);
+
+    [Post("/api/v3/crypto/certificatekeypairs/")]
+    Task<ApiResponse<Dictionary<string, object>>> ImportCertificateAsync(
+        [Body] ImportCertRequest body);
+
+    // ── SAML Sources ────────────────────────────────────────────────────────
+    [Post("/api/v3/sources/saml/")]
+    Task<ApiResponse<Dictionary<string, object>>> CreateSamlSourceAsync(
+        [Body] CreateSamlSourceRequest body);
+
+    [Get("/api/v3/sources/saml/{slug}/metadata/")]
+    Task<ApiResponse<string>> GetSamlSourceMetadataAsync(string slug);
+
+    [Delete("/api/v3/sources/saml/{slug}/")]
+    Task DeleteSamlSourceAsync(string slug);
+}

OTSSignsOrchestrator.Server/Clients/IXiboApiClient.cs

@@ -0,0 +1,138 @@
+using Refit;
+
+namespace OTSSignsOrchestrator.Server.Clients;
+
+// ── Request DTOs ────────────────────────────────────────────────────────────
+public record CreateUserRequest(
+    string UserName,
+    string Email,
+    string Password,
+    int UserTypeId,
+    int HomePageId);
+
+public record UpdateUserRequest(
+    string? UserName,
+    string? Email,
+    string? Password,
+    int? UserTypeId,
+    int? HomePageId,
+    int? Retired);
+
+public record CreateGroupRequest(string Group, string? Description);
+
+public record AssignMemberRequest(int[] UserId);
+
+public record SetAclRequest(string[] ObjectId, string[] PermissionsId);
+
+public record CreateApplicationRequest(string Name);
+
+public record UpdateSettingsRequest(Dictionary<string, string> Settings);
+
+public record CreateDisplayRequest(string Display, string? Description);
+
+// ── Xibo CMS Refit Interface ────────────────────────────────────────────────
+// CRITICAL: GET /api/application is BLOCKED — only POST and DELETE exist.
+// All group endpoints use /api/group, NOT /api/usergroup.
+// Feature assignment is POST /api/group/{id}/acl, NOT /features.
+// Xibo paginates at 10 items by default — always pass start + length params.
+[Headers("Authorization: Bearer")]
+public interface IXiboApiClient
+{
+    // ── About ───────────────────────────────────────────────────────────────
+    [Get("/about")]
+    Task<ApiResponse<object>> GetAboutAsync();
+
+    // ── Users ───────────────────────────────────────────────────────────────
+    [Get("/user")]
+    Task<List<Dictionary<string, object>>> GetUsersAsync(
+        [AliasAs("start")] int? start = 0,
+        [AliasAs("length")] int? length = 200);
+
+    [Post("/user")]
+    Task<ApiResponse<Dictionary<string, object>>> CreateUserAsync(
+        [Body(BodySerializationMethod.UrlEncoded)] CreateUserRequest body);
+
+    [Put("/user/{userId}")]
+    Task<ApiResponse<Dictionary<string, object>>> UpdateUserAsync(
+        int userId,
+        [Body(BodySerializationMethod.UrlEncoded)] UpdateUserRequest body);
+
+    [Delete("/user/{userId}")]
+    Task DeleteUserAsync(int userId);
+
+    // ── Groups (NOT /usergroup) ─────────────────────────────────────────────
+    [Get("/group")]
+    Task<List<Dictionary<string, object>>> GetGroupsAsync(
+        [AliasAs("start")] int? start = 0,
+        [AliasAs("length")] int? length = 200);
+
+    [Post("/group")]
+    Task<ApiResponse<Dictionary<string, object>>> CreateGroupAsync(
+        [Body(BodySerializationMethod.UrlEncoded)] CreateGroupRequest body);
+
+    [Delete("/group/{groupId}")]
+    Task DeleteGroupAsync(int groupId);
+
+    [Post("/group/members/assign/{groupId}")]
+    Task<ApiResponse<object>> AssignUserToGroupAsync(
+        int groupId,
+        [Body(BodySerializationMethod.UrlEncoded)] AssignMemberRequest body);
+
+    // ACL — NOT /features
+    [Post("/group/{groupId}/acl")]
+    Task<ApiResponse<object>> SetGroupAclAsync(
+        int groupId,
+        [Body(BodySerializationMethod.UrlEncoded)] SetAclRequest body);
+
+    // ── Displays ────────────────────────────────────────────────────────────
+    [Get("/display")]
+    Task<List<Dictionary<string, object>>> GetDisplaysAsync(
+        [AliasAs("start")] int? start = 0,
+        [AliasAs("length")] int? length = 200,
+        [AliasAs("authorised")] int? authorised = null);
+
+    // ── Applications (POST + DELETE only — GET is BLOCKED) ──────────────────
+    [Post("/application")]
+    Task<ApiResponse<Dictionary<string, object>>> CreateApplicationAsync(
+        [Body(BodySerializationMethod.UrlEncoded)] CreateApplicationRequest body);
+
+    [Delete("/application/{key}")]
+    Task DeleteApplicationAsync(string key);
+
+    // ── Settings ────────────────────────────────────────────────────────────
+    [Get("/settings")]
+    Task<ApiResponse<object>> GetSettingsAsync();
+
+    [Put("/settings")]
+    Task<ApiResponse<object>> UpdateSettingsAsync(
+        [Body(BodySerializationMethod.UrlEncoded)] UpdateSettingsRequest body);
+}
+
+// ── Pagination helper ───────────────────────────────────────────────────────
+public static class XiboApiClientExtensions
+{
+    /// <summary>
+    /// Pages through a Xibo list endpoint until a page returns fewer items than pageSize.
+    /// </summary>
+    public static async Task<List<T>> GetAllPagesAsync<T>(
+        this IXiboApiClient client,
+        Func<int, int, Task<List<T>>> listMethod,
+        int pageSize = 200)
+    {
+        var all = new List<T>();
+        var start = 0;
+
+        while (true)
+        {
+            var page = await listMethod(start, pageSize);
+            all.AddRange(page);
+
+            if (page.Count < pageSize)
+                break;
+
+            start += pageSize;
+        }
+
+        return all;
+    }
+}

OTSSignsOrchestrator.Server/Clients/XiboClientFactory.cs

@@ -0,0 +1,211 @@
+using System.Collections.Concurrent;
+using System.Net;
+using System.Net.Http.Headers;
+using System.Text.Json;
+using Polly;
+using Polly.Retry;
+using Refit;
+
+namespace OTSSignsOrchestrator.Server.Clients;
+
+/// <summary>
+/// Creates per-instance <see cref="IXiboApiClient"/> Refit proxies with
+/// OAuth2 bearer-token caching, auto-refresh on 401, and Polly retry.
+/// Registered as a singleton.
+/// </summary>
+public sealed class XiboClientFactory
+{
+    private readonly IHttpClientFactory _httpClientFactory;
+    private readonly ConcurrentDictionary<string, TokenEntry> _tokenCache = new();
+    private readonly SemaphoreSlim _tokenLock = new(1, 1);
+
+    private static readonly TimeSpan TokenCacheTtl = TimeSpan.FromMinutes(5);
+
+    public XiboClientFactory(IHttpClientFactory httpClientFactory)
+    {
+        _httpClientFactory = httpClientFactory;
+    }
+
+    /// <summary>
+    /// Build a Refit client targeting <paramref name="instanceBaseUrl"/>/api.
+    /// Tokens are cached per base URL for 5 minutes and auto-refreshed on 401.
+    /// </summary>
+    public async Task<IXiboApiClient> CreateAsync(
+        string instanceBaseUrl,
+        string clientId,
+        string clientSecret)
+    {
+        // Ensure we have a valid token up-front
+        var token = await GetOrRefreshTokenAsync(instanceBaseUrl, clientId, clientSecret);
+
+        var retryPipeline = new ResiliencePipelineBuilder<HttpResponseMessage>()
+            .AddRetry(new RetryStrategyOptions<HttpResponseMessage>
+            {
+                MaxRetryAttempts = 3,
+                BackoffType = DelayBackoffType.Exponential,
+                Delay = TimeSpan.FromSeconds(1),
+                ShouldHandle = new PredicateBuilder<HttpResponseMessage>()
+                    .HandleResult(r =>
+                        r.StatusCode is HttpStatusCode.RequestTimeout
+                            or HttpStatusCode.TooManyRequests
+                            or >= HttpStatusCode.InternalServerError),
+            })
+            .Build();
+
+        var handler = new XiboDelegatingHandler(
+            this, instanceBaseUrl, clientId, clientSecret, token, retryPipeline)
+        {
+            InnerHandler = new HttpClientHandler(),
+        };
+
+        var httpClient = new HttpClient(handler)
+        {
+            BaseAddress = new Uri(instanceBaseUrl.TrimEnd('/') + "/api"),
+        };
+
+        return RestService.For<IXiboApiClient>(httpClient);
+    }
+
+    // ── Token management ────────────────────────────────────────────────────
+
+    internal async Task<string> GetOrRefreshTokenAsync(
+        string instanceBaseUrl,
+        string clientId,
+        string clientSecret,
+        bool forceRefresh = false)
+    {
+        var key = instanceBaseUrl.TrimEnd('/').ToLowerInvariant();
+
+        if (!forceRefresh
+            && _tokenCache.TryGetValue(key, out var cached)
+            && cached.ExpiresAt > DateTimeOffset.UtcNow)
+        {
+            return cached.AccessToken;
+        }
+
+        await _tokenLock.WaitAsync();
+        try
+        {
+            // Double-check after acquiring lock
+            if (!forceRefresh
+                && _tokenCache.TryGetValue(key, out cached)
+                && cached.ExpiresAt > DateTimeOffset.UtcNow)
+            {
+                return cached.AccessToken;
+            }
+
+            var token = await RequestTokenAsync(instanceBaseUrl, clientId, clientSecret);
+            _tokenCache[key] = new TokenEntry(token, DateTimeOffset.UtcNow.Add(TokenCacheTtl));
+            return token;
+        }
+        finally
+        {
+            _tokenLock.Release();
+        }
+    }
+
+    private static async Task<string> RequestTokenAsync(
+        string instanceBaseUrl,
+        string clientId,
+        string clientSecret)
+    {
+        using var http = new HttpClient();
+
+        var content = new FormUrlEncodedContent(new Dictionary<string, string>
+        {
+            ["grant_type"] = "client_credentials",
+            ["client_id"] = clientId,
+            ["client_secret"] = clientSecret,
+        });
+
+        var response = await http.PostAsync(
+            $"{instanceBaseUrl.TrimEnd('/')}/api/authorize/access_token",
+            content);
+
+        response.EnsureSuccessStatusCode();
+
+        var json = await response.Content.ReadAsStringAsync();
+        using var doc = JsonDocument.Parse(json);
+        return doc.RootElement.GetProperty("access_token").GetString()
+            ?? throw new InvalidOperationException("Token response missing access_token.");
+    }
+
+    private sealed record TokenEntry(string AccessToken, DateTimeOffset ExpiresAt);
+
+    // ── Delegating handler ──────────────────────────────────────────────────
+
+    private sealed class XiboDelegatingHandler : DelegatingHandler
+    {
+        private readonly XiboClientFactory _factory;
+        private readonly string _instanceBaseUrl;
+        private readonly string _clientId;
+        private readonly string _clientSecret;
+        private readonly ResiliencePipeline<HttpResponseMessage> _retryPipeline;
+        private string _accessToken;
+
+        public XiboDelegatingHandler(
+            XiboClientFactory factory,
+            string instanceBaseUrl,
+            string clientId,
+            string clientSecret,
+            string accessToken,
+            ResiliencePipeline<HttpResponseMessage> retryPipeline)
+        {
+            _factory = factory;
+            _instanceBaseUrl = instanceBaseUrl;
+            _clientId = clientId;
+            _clientSecret = clientSecret;
+            _accessToken = accessToken;
+            _retryPipeline = retryPipeline;
+        }
+
+        protected override async Task<HttpResponseMessage> SendAsync(
+            HttpRequestMessage request,
+            CancellationToken cancellationToken)
+        {
+            return await _retryPipeline.ExecuteAsync(async ct =>
+            {
+                // Clone the request for retries (original may already be disposed)
+                using var clone = await CloneRequestAsync(request);
+                clone.Headers.Authorization =
+                    new AuthenticationHeaderValue("Bearer", _accessToken);
+
+                var response = await base.SendAsync(clone, ct);
+
+                if (response.StatusCode == HttpStatusCode.Unauthorized)
+                {
+                    // Force-refresh the token and retry once
+                    _accessToken = await _factory.GetOrRefreshTokenAsync(
+                        _instanceBaseUrl, _clientId, _clientSecret, forceRefresh: true);
+
+                    using var retry = await CloneRequestAsync(request);
+                    retry.Headers.Authorization =
+                        new AuthenticationHeaderValue("Bearer", _accessToken);
+
+                    response = await base.SendAsync(retry, ct);
+                }
+
+                return response;
+            }, cancellationToken);
+        }
+
+        private static async Task<HttpRequestMessage> CloneRequestAsync(
+            HttpRequestMessage original)
+        {
+            var clone = new HttpRequestMessage(original.Method, original.RequestUri);
+
+            if (original.Content != null)
+            {
+                var body = await original.Content.ReadAsByteArrayAsync();
+                clone.Content = new ByteArrayContent(body);
+                foreach (var header in original.Content.Headers)
+                    clone.Content.Headers.TryAddWithoutValidation(header.Key, header.Value);
+            }
+
+            foreach (var header in original.Headers)
+                clone.Headers.TryAddWithoutValidation(header.Key, header.Value);
+
+            return clone;
+        }
+    }
+}

OTSSignsOrchestrator.Server/Data/Entities/AuditLog.cs

@@ -0,0 +1,13 @@
+namespace OTSSignsOrchestrator.Server.Data.Entities;
+
+public class AuditLog
+{
+    public Guid Id { get; set; }
+    public Guid? InstanceId { get; set; }
+    public string Actor { get; set; } = string.Empty;
+    public string Action { get; set; } = string.Empty;
+    public string Target { get; set; } = string.Empty;
+    public string? Outcome { get; set; }
+    public string? Detail { get; set; }
+    public DateTime OccurredAt { get; set; }
+}

OTSSignsOrchestrator.Server/Data/Entities/AuthentikMetrics.cs

@@ -0,0 +1,17 @@
+namespace OTSSignsOrchestrator.Server.Data.Entities;
+
+public enum AuthentikMetricsStatus
+{
+    Healthy,
+    Degraded,
+    Critical
+}
+
+public class AuthentikMetrics
+{
+    public Guid Id { get; set; }
+    public DateTime CheckedAt { get; set; }
+    public AuthentikMetricsStatus Status { get; set; }
+    public int LatencyMs { get; set; }
+    public string? ErrorMessage { get; set; }
+}

OTSSignsOrchestrator.Server/Data/Entities/ByoiConfig.cs

@@ -0,0 +1,16 @@
+namespace OTSSignsOrchestrator.Server.Data.Entities;
+
+public class ByoiConfig
+{
+    public Guid Id { get; set; }
+    public Guid InstanceId { get; set; }
+    public string Slug { get; set; } = string.Empty;
+    public string EntityId { get; set; } = string.Empty;
+    public string SsoUrl { get; set; } = string.Empty;
+    public string CertPem { get; set; } = string.Empty;
+    public DateTime CertExpiry { get; set; }
+    public bool Enabled { get; set; }
+    public DateTime CreatedAt { get; set; }
+
+    public Instance Instance { get; set; } = null!;
+}

OTSSignsOrchestrator.Server/Data/Entities/Customer.cs

@@ -0,0 +1,38 @@
+namespace OTSSignsOrchestrator.Server.Data.Entities;
+
+public enum CustomerPlan
+{
+    Essentials,
+    Pro
+}
+
+public enum CustomerStatus
+{
+    PendingPayment,
+    Provisioning,
+    Active,
+    Suspended,
+    Decommissioned
+}
+
+public class Customer
+{
+    public Guid Id { get; set; }
+    public string Abbreviation { get; set; } = string.Empty;
+    public string CompanyName { get; set; } = string.Empty;
+    public string AdminEmail { get; set; } = string.Empty;
+    public string AdminFirstName { get; set; } = string.Empty;
+    public string AdminLastName { get; set; } = string.Empty;
+    public CustomerPlan Plan { get; set; }
+    public int ScreenCount { get; set; }
+    public string? StripeCustomerId { get; set; }
+    public string? StripeSubscriptionId { get; set; }
+    public string? StripeCheckoutSessionId { get; set; }
+    public CustomerStatus Status { get; set; }
+    public int FailedPaymentCount { get; set; }
+    public DateTime? FirstPaymentFailedAt { get; set; }
+    public DateTime CreatedAt { get; set; }
+
+    public ICollection<Instance> Instances { get; set; } = [];
+    public ICollection<Job> Jobs { get; set; } = [];
+}

OTSSignsOrchestrator.Server/Data/Entities/HealthEvent.cs

@@ -0,0 +1,21 @@
+namespace OTSSignsOrchestrator.Server.Data.Entities;
+
+public enum HealthEventStatus
+{
+    Healthy,
+    Degraded,
+    Critical
+}
+
+public class HealthEvent
+{
+    public Guid Id { get; set; }
+    public Guid InstanceId { get; set; }
+    public string CheckName { get; set; } = string.Empty;
+    public HealthEventStatus Status { get; set; }
+    public string? Message { get; set; }
+    public bool Remediated { get; set; }
+    public DateTime OccurredAt { get; set; }
+
+    public Instance Instance { get; set; } = null!;
+}

OTSSignsOrchestrator.Server/Data/Entities/Instance.cs

@@ -0,0 +1,30 @@
+namespace OTSSignsOrchestrator.Server.Data.Entities;
+
+public enum HealthStatus
+{
+    Unknown,
+    Healthy,
+    Degraded,
+    Critical
+}
+
+public class Instance
+{
+    public Guid Id { get; set; }
+    public Guid CustomerId { get; set; }
+    public string XiboUrl { get; set; } = string.Empty;
+    public string DockerStackName { get; set; } = string.Empty;
+    public string MysqlDatabase { get; set; } = string.Empty;
+    public string NfsPath { get; set; } = string.Empty;
+    public string? CmsAdminPassRef { get; set; }
+    public string? AuthentikProviderId { get; set; }
+    public HealthStatus HealthStatus { get; set; }
+    public DateTime? LastHealthCheck { get; set; }
+    public DateTime CreatedAt { get; set; }
+
+    public Customer Customer { get; set; } = null!;
+    public ICollection<HealthEvent> HealthEvents { get; set; } = [];
+    public ICollection<ScreenSnapshot> ScreenSnapshots { get; set; } = [];
+    public ICollection<OauthAppRegistry> OauthAppRegistries { get; set; } = [];
+    public ICollection<ByoiConfig> ByoiConfigs { get; set; } = [];
+}

OTSSignsOrchestrator.Server/Data/Entities/Job.cs

@@ -0,0 +1,26 @@
+namespace OTSSignsOrchestrator.Server.Data.Entities;
+
+public enum JobStatus
+{
+    Queued,
+    Running,
+    Completed,
+    Failed
+}
+
+public class Job
+{
+    public Guid Id { get; set; }
+    public Guid CustomerId { get; set; }
+    public string JobType { get; set; } = string.Empty;
+    public JobStatus Status { get; set; }
+    public string? TriggeredBy { get; set; }
+    public string? Parameters { get; set; }
+    public DateTime CreatedAt { get; set; }
+    public DateTime? StartedAt { get; set; }
+    public DateTime? CompletedAt { get; set; }
+    public string? ErrorMessage { get; set; }
+
+    public Customer Customer { get; set; } = null!;
+    public ICollection<JobStep> Steps { get; set; } = [];
+}

OTSSignsOrchestrator.Server/Data/Entities/JobStep.cs

@@ -0,0 +1,22 @@
+namespace OTSSignsOrchestrator.Server.Data.Entities;
+
+public enum JobStepStatus
+{
+    Queued,
+    Running,
+    Completed,
+    Failed
+}
+
+public class JobStep
+{
+    public Guid Id { get; set; }
+    public Guid JobId { get; set; }
+    public string StepName { get; set; } = string.Empty;
+    public JobStepStatus Status { get; set; }
+    public string? LogOutput { get; set; }
+    public DateTime? StartedAt { get; set; }
+    public DateTime? CompletedAt { get; set; }
+
+    public Job Job { get; set; } = null!;
+}

OTSSignsOrchestrator.Server/Data/Entities/OauthAppRegistry.cs

@@ -0,0 +1,11 @@
+namespace OTSSignsOrchestrator.Server.Data.Entities;
+
+public class OauthAppRegistry
+{
+    public Guid Id { get; set; }
+    public Guid InstanceId { get; set; }
+    public string ClientId { get; set; } = string.Empty;
+    public DateTime CreatedAt { get; set; }
+
+    public Instance Instance { get; set; } = null!;
+}

OTSSignsOrchestrator.Server/Data/Entities/Operator.cs

@@ -0,0 +1,18 @@
+namespace OTSSignsOrchestrator.Server.Data.Entities;
+
+public enum OperatorRole
+{
+    Admin,
+    Viewer
+}
+
+public class Operator
+{
+    public Guid Id { get; set; }
+    public string Email { get; set; } = string.Empty;
+    public string PasswordHash { get; set; } = string.Empty;
+    public OperatorRole Role { get; set; }
+    public DateTime CreatedAt { get; set; }
+
+    public ICollection<RefreshToken> RefreshTokens { get; set; } = [];
+}

OTSSignsOrchestrator.Server/Data/Entities/RefreshToken.cs

@@ -0,0 +1,12 @@
+namespace OTSSignsOrchestrator.Server.Data.Entities;
+
+public class RefreshToken
+{
+    public Guid Id { get; set; }
+    public Guid OperatorId { get; set; }
+    public string Token { get; set; } = string.Empty;
+    public DateTime ExpiresAt { get; set; }
+    public DateTime? RevokedAt { get; set; }
+
+    public Operator Operator { get; set; } = null!;
+}

OTSSignsOrchestrator.Server/Data/Entities/ScreenSnapshot.cs

@@ -0,0 +1,12 @@
+namespace OTSSignsOrchestrator.Server.Data.Entities;
+
+public class ScreenSnapshot
+{
+    public Guid Id { get; set; }
+    public Guid InstanceId { get; set; }
+    public DateOnly SnapshotDate { get; set; }
+    public int ScreenCount { get; set; }
+    public DateTime CreatedAt { get; set; }
+
+    public Instance Instance { get; set; } = null!;
+}

OTSSignsOrchestrator.Server/Data/Entities/StripeEvent.cs

@@ -0,0 +1,9 @@
+namespace OTSSignsOrchestrator.Server.Data.Entities;
+
+public class StripeEvent
+{
+    public string StripeEventId { get; set; } = string.Empty;
+    public string EventType { get; set; } = string.Empty;
+    public DateTime ProcessedAt { get; set; }
+    public string? Payload { get; set; }
+}

OTSSignsOrchestrator.Server/Data/OrchestratorDbContext.cs

@@ -0,0 +1,190 @@
+using Microsoft.EntityFrameworkCore;
+using OTSSignsOrchestrator.Server.Data.Entities;
+
+namespace OTSSignsOrchestrator.Server.Data;
+
+public class OrchestratorDbContext : DbContext
+{
+    public OrchestratorDbContext(DbContextOptions<OrchestratorDbContext> options)
+        : base(options) { }
+
+    public DbSet<Customer> Customers => Set<Customer>();
+    public DbSet<Instance> Instances => Set<Instance>();
+    public DbSet<Job> Jobs => Set<Job>();
+    public DbSet<JobStep> JobSteps => Set<JobStep>();
+    public DbSet<HealthEvent> HealthEvents => Set<HealthEvent>();
+    public DbSet<AuditLog> AuditLogs => Set<AuditLog>();
+    public DbSet<StripeEvent> StripeEvents => Set<StripeEvent>();
+    public DbSet<ScreenSnapshot> ScreenSnapshots => Set<ScreenSnapshot>();
+    public DbSet<OauthAppRegistry> OauthAppRegistries => Set<OauthAppRegistry>();
+    public DbSet<AuthentikMetrics> AuthentikMetrics => Set<AuthentikMetrics>();
+    public DbSet<Operator> Operators => Set<Operator>();
+    public DbSet<RefreshToken> RefreshTokens => Set<RefreshToken>();
+    public DbSet<ByoiConfig> ByoiConfigs => Set<ByoiConfig>();
+
+    protected override void OnModelCreating(ModelBuilder modelBuilder)
+    {
+        base.OnModelCreating(modelBuilder);
+
+        // ── Snake-case naming convention ─────────────────────────────────
+        foreach (var entity in modelBuilder.Model.GetEntityTypes())
+        {
+            entity.SetTableName(ToSnakeCase(entity.GetTableName()!));
+
+            foreach (var property in entity.GetProperties())
+                property.SetColumnName(ToSnakeCase(property.GetColumnName()));
+
+            foreach (var key in entity.GetKeys())
+                key.SetName(ToSnakeCase(key.GetName()!));
+
+            foreach (var fk in entity.GetForeignKeys())
+                fk.SetConstraintName(ToSnakeCase(fk.GetConstraintName()!));
+
+            foreach (var index in entity.GetIndexes())
+                index.SetDatabaseName(ToSnakeCase(index.GetDatabaseName()!));
+        }
+
+        // ── Customer ────────────────────────────────────────────────────
+        modelBuilder.Entity<Customer>(e =>
+        {
+            e.HasKey(c => c.Id);
+            e.Property(c => c.Abbreviation).HasMaxLength(8);
+            e.Property(c => c.Plan).HasConversion<string>();
+            e.Property(c => c.Status).HasConversion<string>();
+            e.Property(c => c.FailedPaymentCount).HasDefaultValue(0);
+            e.HasIndex(c => c.Abbreviation).IsUnique();
+            e.HasIndex(c => c.StripeCustomerId).IsUnique();
+        });
+
+        // ── Instance ────────────────────────────────────────────────────
+        modelBuilder.Entity<Instance>(e =>
+        {
+            e.HasKey(i => i.Id);
+            e.Property(i => i.HealthStatus).HasConversion<string>();
+            e.HasIndex(i => i.CustomerId);
+            e.HasIndex(i => i.DockerStackName).IsUnique();
+            e.HasOne(i => i.Customer)
+                .WithMany(c => c.Instances)
+                .HasForeignKey(i => i.CustomerId);
+        });
+
+        // ── Job ─────────────────────────────────────────────────────────
+        modelBuilder.Entity<Job>(e =>
+        {
+            e.HasKey(j => j.Id);
+            e.Property(j => j.Status).HasConversion<string>();
+            e.Property(j => j.Parameters).HasColumnType("text");
+            e.HasIndex(j => j.CustomerId);
+            e.HasOne(j => j.Customer)
+                .WithMany(c => c.Jobs)
+                .HasForeignKey(j => j.CustomerId);
+        });
+
+        // ── JobStep ─────────────────────────────────────────────────────
+        modelBuilder.Entity<JobStep>(e =>
+        {
+            e.HasKey(s => s.Id);
+            e.Property(s => s.Status).HasConversion<string>();
+            e.Property(s => s.LogOutput).HasColumnType("text");
+            e.HasIndex(s => s.JobId);
+            e.HasOne(s => s.Job)
+                .WithMany(j => j.Steps)
+                .HasForeignKey(s => s.JobId);
+        });
+
+        // ── HealthEvent ─────────────────────────────────────────────────
+        modelBuilder.Entity<HealthEvent>(e =>
+        {
+            e.HasKey(h => h.Id);
+            e.Property(h => h.Status).HasConversion<string>();
+            e.HasIndex(h => h.InstanceId);
+            e.HasOne(h => h.Instance)
+                .WithMany(i => i.HealthEvents)
+                .HasForeignKey(h => h.InstanceId);
+        });
+
+        // ── AuditLog ────────────────────────────────────────────────────
+        modelBuilder.Entity<AuditLog>(e =>
+        {
+            e.HasKey(a => a.Id);
+            e.Property(a => a.Detail).HasColumnType("text");
+            e.HasIndex(a => a.InstanceId);
+            e.HasIndex(a => a.OccurredAt);
+        });
+
+        // ── StripeEvent ─────────────────────────────────────────────────
+        modelBuilder.Entity<StripeEvent>(e =>
+        {
+            e.HasKey(s => s.StripeEventId);
+            e.Property(s => s.Payload).HasColumnType("text");
+        });
+
+        // ── ScreenSnapshot ──────────────────────────────────────────────
+        modelBuilder.Entity<ScreenSnapshot>(e =>
+        {
+            e.HasKey(s => s.Id);
+            e.HasIndex(s => s.InstanceId);
+            e.HasOne(s => s.Instance)
+                .WithMany(i => i.ScreenSnapshots)
+                .HasForeignKey(s => s.InstanceId);
+        });
+
+        // ── OauthAppRegistry ────────────────────────────────────────────
+        modelBuilder.Entity<OauthAppRegistry>(e =>
+        {
+            e.HasKey(o => o.Id);
+            e.HasIndex(o => o.InstanceId);
+            e.HasIndex(o => o.ClientId).IsUnique();
+            e.HasOne(o => o.Instance)
+                .WithMany(i => i.OauthAppRegistries)
+                .HasForeignKey(o => o.InstanceId);
+        });
+
+        // ── AuthentikMetrics ────────────────────────────────────────────
+        modelBuilder.Entity<AuthentikMetrics>(e =>
+        {
+            e.HasKey(a => a.Id);
+            e.Property(a => a.Status).HasConversion<string>();
+        });
+
+        // ── Operator ────────────────────────────────────────────────────
+        modelBuilder.Entity<Operator>(e =>
+        {
+            e.HasKey(o => o.Id);
+            e.Property(o => o.Role).HasConversion<string>();
+            e.HasIndex(o => o.Email).IsUnique();
+        });
+
+        // ── RefreshToken ────────────────────────────────────────────────
+        modelBuilder.Entity<RefreshToken>(e =>
+        {
+            e.HasKey(r => r.Id);
+            e.HasIndex(r => r.Token).IsUnique();
+            e.HasIndex(r => r.OperatorId);
+            e.HasOne(r => r.Operator)
+                .WithMany(o => o.RefreshTokens)
+                .HasForeignKey(r => r.OperatorId);
+        });
+
+        // ── ByoiConfig ──────────────────────────────────────────────────
+        modelBuilder.Entity<ByoiConfig>(e =>
+        {
+            e.HasKey(b => b.Id);
+            e.Property(b => b.CertPem).HasColumnType("text");
+            e.HasIndex(b => b.InstanceId);
+            e.HasIndex(b => b.Slug).IsUnique();
+            e.HasOne(b => b.Instance)
+                .WithMany(i => i.ByoiConfigs)
+                .HasForeignKey(b => b.InstanceId);
+        });
+    }
+
+    private static string ToSnakeCase(string name)
+    {
+        return string.Concat(
+            name.Select((c, i) =>
+                i > 0 && char.IsUpper(c) && !char.IsUpper(name[i - 1])
+                    ? "_" + char.ToLowerInvariant(c)
+                    : char.ToLowerInvariant(c).ToString()));
+    }
+}

OTSSignsOrchestrator.Server/Health/AuthentikGlobalHealthJob.cs

@@ -0,0 +1,37 @@
+using Quartz;
+using OTSSignsOrchestrator.Server.Health.Checks;
+
+namespace OTSSignsOrchestrator.Server.Health;
+
+/// <summary>
+/// Quartz job that runs the <see cref="AuthentikGlobalHealthCheck"/> every 2 minutes
+/// on a separate schedule from the per-instance health checks.
+/// </summary>
+[DisallowConcurrentExecution]
+public sealed class AuthentikGlobalHealthJob : IJob
+{
+    private readonly AuthentikGlobalHealthCheck _check;
+    private readonly ILogger<AuthentikGlobalHealthJob> _logger;
+
+    public AuthentikGlobalHealthJob(
+        AuthentikGlobalHealthCheck check,
+        ILogger<AuthentikGlobalHealthJob> logger)
+    {
+        _check = check;
+        _logger = logger;
+    }
+
+    public async Task Execute(IJobExecutionContext context)
+    {
+        try
+        {
+            var result = await _check.RunGlobalAsync(context.CancellationToken);
+            _logger.LogInformation("Authentik global health: {Status} — {Message}",
+                result.Status, result.Message);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Authentik global health job failed");
+        }
+    }
+}

OTSSignsOrchestrator.Server/Health/Checks/AdminIntegrityHealthCheck.cs

@@ -0,0 +1,183 @@
+using Microsoft.EntityFrameworkCore;
+using OTSSignsOrchestrator.Server.Clients;
+using OTSSignsOrchestrator.Server.Data;
+using OTSSignsOrchestrator.Server.Data.Entities;
+
+namespace OTSSignsOrchestrator.Server.Health.Checks;
+
+/// <summary>
+/// Verifies that both <c>ots-admin-{abbrev}</c> and <c>ots-svc-{abbrev}</c> exist
+/// with <c>userTypeId == 1</c> (SuperAdmin). MUST use <see cref="XiboApiClientExtensions.GetAllPagesAsync{T}"/>
+/// because Xibo paginates at 10 items by default.
+///
+/// <c>saml-usertypeid</c> is JIT-only and does NOT maintain SuperAdmin on existing users —
+/// this check IS the ongoing enforcement mechanism.
+/// </summary>
+public sealed class AdminIntegrityHealthCheck : IHealthCheck
+{
+    private readonly XiboClientFactory _clientFactory;
+    private readonly IServiceProvider _services;
+    private readonly ILogger<AdminIntegrityHealthCheck> _logger;
+
+    public string CheckName => "AdminIntegrity";
+    public bool AutoRemediate => true;
+
+    public AdminIntegrityHealthCheck(
+        XiboClientFactory clientFactory,
+        IServiceProvider services,
+        ILogger<AdminIntegrityHealthCheck> logger)
+    {
+        _clientFactory = clientFactory;
+        _services = services;
+        _logger = logger;
+    }
+
+    public async Task<HealthCheckResult> RunAsync(Instance instance, CancellationToken ct)
+    {
+        var (client, abbrev) = await ResolveAsync(instance);
+        if (client is null)
+            return new HealthCheckResult(HealthStatus.Critical, "No OAuth app — cannot verify admin accounts");
+
+        var users = await client.GetAllPagesAsync(
+            (start, length) => client.GetUsersAsync(start, length));
+
+        var adminName = $"ots-admin-{abbrev}";
+        var svcName = $"ots-svc-{abbrev}";
+        var problems = new List<string>();
+
+        foreach (var expected in new[] { adminName, svcName })
+        {
+            var user = users.FirstOrDefault(u =>
+                u.TryGetValue("userName", out var n) &&
+                string.Equals(n?.ToString(), expected, StringComparison.OrdinalIgnoreCase));
+
+            if (user is null)
+            {
+                problems.Add($"{expected} is MISSING");
+                continue;
+            }
+
+            if (user.TryGetValue("userTypeId", out var typeObj) &&
+                typeObj?.ToString() != "1")
+            {
+                problems.Add($"{expected} has userTypeId={typeObj} (expected 1)");
+            }
+        }
+
+        if (problems.Count == 0)
+            return new HealthCheckResult(HealthStatus.Healthy, "Admin accounts intact");
+
+        return new HealthCheckResult(
+            HealthStatus.Critical,
+            $"Admin integrity issues: {string.Join("; ", problems)}",
+            string.Join("\n", problems));
+    }
+
+    public async Task<bool> RemediateAsync(Instance instance, CancellationToken ct)
+    {
+        var (client, abbrev) = await ResolveAsync(instance);
+        if (client is null) return false;
+
+        await using var scope = _services.CreateAsyncScope();
+        var db = scope.ServiceProvider.GetRequiredService<OrchestratorDbContext>();
+
+        var users = await client.GetAllPagesAsync(
+            (start, length) => client.GetUsersAsync(start, length));
+
+        var adminName = $"ots-admin-{abbrev}";
+        var svcName = $"ots-svc-{abbrev}";
+        var allFixed = true;
+
+        foreach (var expected in new[] { adminName, svcName })
+        {
+            var user = users.FirstOrDefault(u =>
+                u.TryGetValue("userName", out var n) &&
+                string.Equals(n?.ToString(), expected, StringComparison.OrdinalIgnoreCase));
+
+            if (user is null)
+            {
+                // Recreate missing account
+                var email = $"{expected}@otssigns.internal";
+                var password = GenerateRandomPassword(32);
+                var createResp = await client.CreateUserAsync(new CreateUserRequest(
+                    expected, email, password, UserTypeId: 1, HomePageId: 1));
+
+                if (!createResp.IsSuccessStatusCode)
+                {
+                    _logger.LogError("Failed to recreate {User}: {Err}", expected, createResp.Error?.Content);
+                    allFixed = false;
+                    continue;
+                }
+
+                // Audit
+                db.AuditLogs.Add(new AuditLog
+                {
+                    Id = Guid.NewGuid(),
+                    InstanceId = instance.Id,
+                    Actor = "HealthCheckEngine:AdminIntegrity",
+                    Action = "RecreateUser",
+                    Target = expected,
+                    Outcome = "Success",
+                    Detail = "User was missing — recreated as SuperAdmin",
+                    OccurredAt = DateTime.UtcNow,
+                });
+            }
+            else
+            {
+                // Fix userTypeId if wrong
+                if (user.TryGetValue("userTypeId", out var typeObj) && typeObj?.ToString() != "1")
+                {
+                    var userId = int.Parse(user["userId"]?.ToString() ?? "0");
+                    if (userId == 0) { allFixed = false; continue; }
+
+                    var updateResp = await client.UpdateUserAsync(userId, new UpdateUserRequest(
+                        UserName: null, Email: null, Password: null, UserTypeId: 1,
+                        HomePageId: null, Retired: null));
+
+                    if (!updateResp.IsSuccessStatusCode)
+                    {
+                        _logger.LogError("Failed to fix userTypeId for {User}: {Err}",
+                            expected, updateResp.Error?.Content);
+                        allFixed = false;
+                        continue;
+                    }
+
+                    db.AuditLogs.Add(new AuditLog
+                    {
+                        Id = Guid.NewGuid(),
+                        InstanceId = instance.Id,
+                        Actor = "HealthCheckEngine:AdminIntegrity",
+                        Action = "FixUserType",
+                        Target = expected,
+                        Outcome = "Success",
+                        Detail = $"Changed userTypeId from {typeObj} to 1 (SuperAdmin)",
+                        OccurredAt = DateTime.UtcNow,
+                    });
+                }
+            }
+        }
+
+        await db.SaveChangesAsync(ct);
+        return allFixed;
+    }
+
+    private async Task<(IXiboApiClient? Client, string Abbrev)> ResolveAsync(Instance instance)
+    {
+        var abbrev = instance.Customer.Abbreviation;
+        var oauthApp = instance.OauthAppRegistries.FirstOrDefault();
+        if (oauthApp is null) return (null, abbrev);
+
+        var settings = _services.GetRequiredService<Core.Services.SettingsService>();
+        var secret = await settings.GetAsync(Core.Services.SettingsService.InstanceOAuthSecretId(abbrev));
+        if (string.IsNullOrEmpty(secret)) return (null, abbrev);
+
+        var client = await _clientFactory.CreateAsync(instance.XiboUrl, oauthApp.ClientId, secret);
+        return (client, abbrev);
+    }
+
+    private static string GenerateRandomPassword(int length)
+    {
+        const string chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!@#$%^&*";
+        return System.Security.Cryptography.RandomNumberGenerator.GetString(chars, length);
+    }
+}

OTSSignsOrchestrator.Server/Health/Checks/AuthentikGlobalHealthCheck.cs

@@ -0,0 +1,107 @@
+using System.Diagnostics;
+using Microsoft.AspNetCore.SignalR;
+using Microsoft.EntityFrameworkCore;
+using OTSSignsOrchestrator.Server.Clients;
+using OTSSignsOrchestrator.Server.Data;
+using OTSSignsOrchestrator.Server.Data.Entities;
+using OTSSignsOrchestrator.Server.Hubs;
+
+namespace OTSSignsOrchestrator.Server.Health.Checks;
+
+/// <summary>
+/// Probes the central Authentik instance at <c>GET /api/v3/-/health/ready/</c>.
+/// Measures latency and writes an <see cref="AuthentikMetrics"/> row.
+/// If down: <c>Severity = Critical</c>, message "Central Authentik is DOWN — all customer web UI logins failing".
+/// This is a fleet-wide P1 alert. Runs every 2 minutes on a separate schedule.
+///
+/// This check is NOT per-instance — it runs once globally. The engine skips it for
+/// per-instance checks. Instead it is scheduled independently as a Quartz job.
+/// </summary>
+public sealed class AuthentikGlobalHealthCheck : IHealthCheck
+{
+    private readonly IAuthentikClient _authentikClient;
+    private readonly IServiceProvider _services;
+    private readonly ILogger<AuthentikGlobalHealthCheck> _logger;
+
+    public string CheckName => "AuthentikGlobal";
+    public bool AutoRemediate => false;
+
+    public AuthentikGlobalHealthCheck(
+        IAuthentikClient authentikClient,
+        IServiceProvider services,
+        ILogger<AuthentikGlobalHealthCheck> logger)
+    {
+        _authentikClient = authentikClient;
+        _services = services;
+        _logger = logger;
+    }
+
+    public async Task<HealthCheckResult> RunAsync(Instance instance, CancellationToken ct)
+    {
+        // This check doesn't use the instance parameter — it checks global Authentik health.
+        return await RunGlobalAsync(ct);
+    }
+
+    /// <summary>
+    /// Core logic — callable from the Quartz job without an instance context.
+    /// </summary>
+    public async Task<HealthCheckResult> RunGlobalAsync(CancellationToken ct)
+    {
+        var sw = Stopwatch.StartNew();
+        AuthentikMetricsStatus metricsStatus;
+        string? errorMessage = null;
+        HealthCheckResult result;
+
+        try
+        {
+            var response = await _authentikClient.CheckHealthAsync();
+            sw.Stop();
+
+            if (response.IsSuccessStatusCode)
+            {
+                metricsStatus = AuthentikMetricsStatus.Healthy;
+                result = new HealthCheckResult(HealthStatus.Healthy,
+                    $"Authentik healthy (latency: {sw.ElapsedMilliseconds}ms)");
+            }
+            else
+            {
+                metricsStatus = AuthentikMetricsStatus.Critical;
+                errorMessage = $"HTTP {response.StatusCode}";
+                result = new HealthCheckResult(HealthStatus.Critical,
+                    "Central Authentik is DOWN — all customer web UI logins failing",
+                    $"Health endpoint returned {response.StatusCode}");
+            }
+        }
+        catch (Exception ex)
+        {
+            sw.Stop();
+            metricsStatus = AuthentikMetricsStatus.Critical;
+            errorMessage = ex.Message;
+            result = new HealthCheckResult(HealthStatus.Critical,
+                "Central Authentik is DOWN — all customer web UI logins failing",
+                ex.Message);
+        }
+
+        // Write metrics row
+        await using var scope = _services.CreateAsyncScope();
+        var db = scope.ServiceProvider.GetRequiredService<OrchestratorDbContext>();
+        db.AuthentikMetrics.Add(new AuthentikMetrics
+        {
+            Id = Guid.NewGuid(),
+            CheckedAt = DateTime.UtcNow,
+            Status = metricsStatus,
+            LatencyMs = (int)sw.ElapsedMilliseconds,
+            ErrorMessage = errorMessage,
+        });
+        await db.SaveChangesAsync(ct);
+
+        // Broadcast alert if critical
+        if (result.Status == HealthStatus.Critical)
+        {
+            var hub = scope.ServiceProvider.GetRequiredService<IHubContext<FleetHub, IFleetClient>>();
+            await hub.Clients.All.SendAlertRaised("Critical", result.Message);
+        }
+
+        return result;
+    }
+}

OTSSignsOrchestrator.Server/Health/Checks/AuthentikSamlProviderHealthCheck.cs

@@ -0,0 +1,60 @@
+using OTSSignsOrchestrator.Server.Clients;
+using OTSSignsOrchestrator.Server.Data.Entities;
+
+namespace OTSSignsOrchestrator.Server.Health.Checks;
+
+/// <summary>
+/// Verifies the per-instance SAML provider in Authentik is active by checking
+/// the provider exists using the stored <see cref="Instance.AuthentikProviderId"/>.
+/// </summary>
+public sealed class AuthentikSamlProviderHealthCheck : IHealthCheck
+{
+    private readonly IAuthentikClient _authentikClient;
+    private readonly ILogger<AuthentikSamlProviderHealthCheck> _logger;
+
+    public string CheckName => "AuthentikSamlProvider";
+    public bool AutoRemediate => false;
+
+    public AuthentikSamlProviderHealthCheck(
+        IAuthentikClient authentikClient,
+        ILogger<AuthentikSamlProviderHealthCheck> logger)
+    {
+        _authentikClient = authentikClient;
+        _logger = logger;
+    }
+
+    public async Task<HealthCheckResult> RunAsync(Instance instance, CancellationToken ct)
+    {
+        if (string.IsNullOrEmpty(instance.AuthentikProviderId))
+        {
+            return new HealthCheckResult(HealthStatus.Degraded,
+                "No Authentik provider ID stored — SAML not provisioned");
+        }
+
+        if (!int.TryParse(instance.AuthentikProviderId, out var providerId))
+        {
+            return new HealthCheckResult(HealthStatus.Critical,
+                $"Invalid Authentik provider ID: {instance.AuthentikProviderId}");
+        }
+
+        try
+        {
+            var response = await _authentikClient.GetSamlProviderAsync(providerId);
+
+            if (response.IsSuccessStatusCode && response.Content is not null)
+            {
+                return new HealthCheckResult(HealthStatus.Healthy,
+                    $"SAML provider {providerId} is active in Authentik");
+            }
+
+            return new HealthCheckResult(HealthStatus.Critical,
+                $"SAML provider {providerId} not found or inaccessible",
+                response.Error?.Content);
+        }
+        catch (Exception ex)
+        {
+            return new HealthCheckResult(HealthStatus.Critical,
+                $"Failed to check SAML provider: {ex.Message}");
+        }
+    }
+}

OTSSignsOrchestrator.Server/Health/Checks/ByoiCertExpiryHealthCheck.cs

@@ -0,0 +1,69 @@
+using OTSSignsOrchestrator.Server.Data.Entities;
+
+namespace OTSSignsOrchestrator.Server.Health.Checks;
+
+/// <summary>
+/// For Pro plan BYOI customers: checks certificate expiry from <see cref="ByoiConfig"/>.
+/// Alerts at 60-day (Warning), 30-day (Warning), 7-day (Critical) thresholds.
+/// AutoRemediate=false — customer must rotate their IdP certificate via the portal.
+/// </summary>
+public sealed class ByoiCertExpiryHealthCheck : IHealthCheck
+{
+    /// <summary>Alert thresholds in days (descending).</summary>
+    internal static readonly int[] AlertThresholdDays = [60, 30, 7];
+
+    /// <summary>Days at or below which severity escalates to Critical.</summary>
+    internal const int CriticalThresholdDays = 7;
+
+    public string CheckName => "ByoiCertExpiry";
+    public bool AutoRemediate => false;
+
+    public Task<HealthCheckResult> RunAsync(Instance instance, CancellationToken ct)
+    {
+        // Only applies to instances with an enabled BYOI config
+        var byoiConfig = instance.ByoiConfigs.FirstOrDefault(b => b.Enabled);
+        if (byoiConfig is null)
+        {
+            return Task.FromResult(new HealthCheckResult(HealthStatus.Healthy,
+                "No BYOI config — check not applicable"));
+        }
+
+        // Only Pro customers have BYOI
+        if (instance.Customer.Plan != CustomerPlan.Pro)
+        {
+            return Task.FromResult(new HealthCheckResult(HealthStatus.Healthy,
+                "Non-Pro plan — BYOI check not applicable"));
+        }
+
+        var daysRemaining = (byoiConfig.CertExpiry - DateTime.UtcNow).TotalDays;
+
+        if (daysRemaining <= 0)
+        {
+            return Task.FromResult(new HealthCheckResult(HealthStatus.Critical,
+                $"BYOI certificate has EXPIRED (expired {Math.Abs((int)daysRemaining)} days ago)",
+                "Customer must rotate their IdP certificate via the portal immediately"));
+        }
+
+        if (daysRemaining <= CriticalThresholdDays)
+        {
+            return Task.FromResult(new HealthCheckResult(HealthStatus.Critical,
+                $"BYOI certificate expires in {(int)daysRemaining} days",
+                "Urgent: customer must rotate their IdP certificate"));
+        }
+
+        // Check warning thresholds (60 and 30 days)
+        foreach (var threshold in AlertThresholdDays)
+        {
+            if (threshold <= CriticalThresholdDays) continue;
+            if (daysRemaining <= threshold)
+            {
+                return Task.FromResult(new HealthCheckResult(HealthStatus.Degraded,
+                    $"BYOI certificate expires in {(int)daysRemaining} days (threshold: {threshold}d)",
+                    "Customer should plan certificate rotation"));
+            }
+        }
+
+        return Task.FromResult(new HealthCheckResult(HealthStatus.Healthy,
+            $"BYOI certificate valid for {(int)daysRemaining} more days"));
+    }
+}

OTSSignsOrchestrator.Server/Health/Checks/DisplayAuthorisedHealthCheck.cs

@@ -0,0 +1,74 @@
+using OTSSignsOrchestrator.Server.Clients;
+using OTSSignsOrchestrator.Server.Data.Entities;
+
+namespace OTSSignsOrchestrator.Server.Health.Checks;
+
+/// <summary>
+/// Verifies the count of authorised displays does not exceed the customer's licensed
+/// <see cref="Customer.ScreenCount"/>. Uses <see cref="XiboApiClientExtensions.GetAllPagesAsync{T}"/>
+/// with <c>authorised=1</c> filter to get all authorised displays.
+/// </summary>
+public sealed class DisplayAuthorisedHealthCheck : IHealthCheck
+{
+    private readonly XiboClientFactory _clientFactory;
+    private readonly IServiceProvider _services;
+    private readonly ILogger<DisplayAuthorisedHealthCheck> _logger;
+
+    public string CheckName => "DisplayAuthorised";
+    public bool AutoRemediate => false;
+
+    public DisplayAuthorisedHealthCheck(
+        XiboClientFactory clientFactory,
+        IServiceProvider services,
+        ILogger<DisplayAuthorisedHealthCheck> logger)
+    {
+        _clientFactory = clientFactory;
+        _services = services;
+        _logger = logger;
+    }
+
+    public async Task<HealthCheckResult> RunAsync(Instance instance, CancellationToken ct)
+    {
+        var (client, _) = await ResolveAsync(instance);
+        if (client is null)
+            return new HealthCheckResult(HealthStatus.Critical, "No OAuth app — cannot check displays");
+
+        try
+        {
+            var displays = await client.GetAllPagesAsync(
+                (start, length) => client.GetDisplaysAsync(start, length, authorised: 1));
+
+            var authorisedCount = displays.Count;
+            var licensed = instance.Customer.ScreenCount;
+
+            if (authorisedCount <= licensed)
+            {
+                return new HealthCheckResult(HealthStatus.Healthy,
+                    $"Authorised displays: {authorisedCount}/{licensed}");
+            }
+
+            return new HealthCheckResult(HealthStatus.Degraded,
+                $"Authorised displays ({authorisedCount}) exceeds license ({licensed})",
+                $"Over-provisioned by {authorisedCount - licensed} display(s)");
+        }
+        catch (Exception ex)
+        {
+            return new HealthCheckResult(HealthStatus.Critical,
+                $"Failed to check displays: {ex.Message}");
+        }
+    }
+
+    private async Task<(IXiboApiClient? Client, string Abbrev)> ResolveAsync(Instance instance)
+    {
+        var abbrev = instance.Customer.Abbreviation;
+        var oauthApp = instance.OauthAppRegistries.FirstOrDefault();
+        if (oauthApp is null) return (null, abbrev);
+
+        var settings = _services.GetRequiredService<Core.Services.SettingsService>();
+        var secret = await settings.GetAsync(Core.Services.SettingsService.InstanceOAuthSecretId(abbrev));
+        if (string.IsNullOrEmpty(secret)) return (null, abbrev);
+
+        var client = await _clientFactory.CreateAsync(instance.XiboUrl, oauthApp.ClientId, secret);
+        return (client, abbrev);
+    }
+}

OTSSignsOrchestrator.Server/Health/Checks/GroupStructureHealthCheck.cs

@@ -0,0 +1,124 @@
+using OTSSignsOrchestrator.Server.Clients;
+using OTSSignsOrchestrator.Server.Data;
+using OTSSignsOrchestrator.Server.Data.Entities;
+
+namespace OTSSignsOrchestrator.Server.Health.Checks;
+
+/// <summary>
+/// Verifies all 4 expected Xibo groups exist for the instance:
+/// <c>{abbrev}-viewer</c>, <c>{abbrev}-editor</c>, <c>{abbrev}-admin</c>, <c>ots-it-{abbrev}</c>.
+/// Uses <see cref="XiboApiClientExtensions.GetAllPagesAsync{T}"/> to avoid pagination truncation.
+/// </summary>
+public sealed class GroupStructureHealthCheck : IHealthCheck
+{
+    private readonly XiboClientFactory _clientFactory;
+    private readonly IServiceProvider _services;
+    private readonly ILogger<GroupStructureHealthCheck> _logger;
+
+    public string CheckName => "GroupStructure";
+    public bool AutoRemediate => true;
+
+    public GroupStructureHealthCheck(
+        XiboClientFactory clientFactory,
+        IServiceProvider services,
+        ILogger<GroupStructureHealthCheck> logger)
+    {
+        _clientFactory = clientFactory;
+        _services = services;
+        _logger = logger;
+    }
+
+    public async Task<HealthCheckResult> RunAsync(Instance instance, CancellationToken ct)
+    {
+        var (client, abbrev) = await ResolveAsync(instance);
+        if (client is null)
+            return new HealthCheckResult(HealthStatus.Critical, "No OAuth app — cannot verify groups");
+
+        var expected = ExpectedGroups(abbrev);
+        var groups = await client.GetAllPagesAsync(
+            (start, length) => client.GetGroupsAsync(start, length));
+
+        var existing = groups
+            .Select(g => g.TryGetValue("group", out var n) ? n?.ToString() : null)
+            .Where(n => n is not null)
+            .ToHashSet(StringComparer.OrdinalIgnoreCase);
+
+        var missing = expected.Where(e => !existing.Contains(e)).ToList();
+
+        if (missing.Count == 0)
+            return new HealthCheckResult(HealthStatus.Healthy, "All 4 expected groups present");
+
+        return new HealthCheckResult(
+            HealthStatus.Critical,
+            $"Missing groups: {string.Join(", ", missing)}",
+            $"Expected: {string.Join(", ", expected)}");
+    }
+
+    public async Task<bool> RemediateAsync(Instance instance, CancellationToken ct)
+    {
+        var (client, abbrev) = await ResolveAsync(instance);
+        if (client is null) return false;
+
+        await using var scope = _services.CreateAsyncScope();
+        var db = scope.ServiceProvider.GetRequiredService<OrchestratorDbContext>();
+
+        var expected = ExpectedGroups(abbrev);
+        var groups = await client.GetAllPagesAsync(
+            (start, length) => client.GetGroupsAsync(start, length));
+
+        var existing = groups
+            .Select(g => g.TryGetValue("group", out var n) ? n?.ToString() : null)
+            .Where(n => n is not null)
+            .ToHashSet(StringComparer.OrdinalIgnoreCase);
+
+        var allFixed = true;
+        foreach (var name in expected.Where(e => !existing.Contains(e)))
+        {
+            var resp = await client.CreateGroupAsync(new CreateGroupRequest(name, $"Auto-created by health check for {abbrev}"));
+            if (resp.IsSuccessStatusCode)
+            {
+                db.AuditLogs.Add(new AuditLog
+                {
+                    Id = Guid.NewGuid(),
+                    InstanceId = instance.Id,
+                    Actor = "HealthCheckEngine:GroupStructure",
+                    Action = "CreateGroup",
+                    Target = name,
+                    Outcome = "Success",
+                    Detail = $"Recreated missing group {name}",
+                    OccurredAt = DateTime.UtcNow,
+                });
+            }
+            else
+            {
+                _logger.LogError("Failed to create group {Group}: {Err}", name, resp.Error?.Content);
+                allFixed = false;
+            }
+        }
+
+        await db.SaveChangesAsync(ct);
+        return allFixed;
+    }
+
+    private static string[] ExpectedGroups(string abbrev) =>
+    [
+        $"{abbrev}-viewer",
+        $"{abbrev}-editor",
+        $"{abbrev}-admin",
+        $"ots-it-{abbrev}",
+    ];
+
+    private async Task<(IXiboApiClient? Client, string Abbrev)> ResolveAsync(Instance instance)
+    {
+        var abbrev = instance.Customer.Abbreviation;
+        var oauthApp = instance.OauthAppRegistries.FirstOrDefault();
+        if (oauthApp is null) return (null, abbrev);
+
+        var settings = _services.GetRequiredService<Core.Services.SettingsService>();
+        var secret = await settings.GetAsync(Core.Services.SettingsService.InstanceOAuthSecretId(abbrev));
+        if (string.IsNullOrEmpty(secret)) return (null, abbrev);
+
+        var client = await _clientFactory.CreateAsync(instance.XiboUrl, oauthApp.ClientId, secret);
+        return (client, abbrev);
+    }
+}

OTSSignsOrchestrator.Server/Health/Checks/InvitationFlowHealthCheck.cs

@@ -0,0 +1,63 @@
+using OTSSignsOrchestrator.Server.Clients;
+using OTSSignsOrchestrator.Server.Data.Entities;
+
+namespace OTSSignsOrchestrator.Server.Health.Checks;
+
+/// <summary>
+/// Verifies the <c>invite-{abbrev}</c> flow exists in Authentik by searching for it
+/// in the invitation stages list.
+/// </summary>
+public sealed class InvitationFlowHealthCheck : IHealthCheck
+{
+    private readonly IAuthentikClient _authentikClient;
+    private readonly ILogger<InvitationFlowHealthCheck> _logger;
+
+    public string CheckName => "InvitationFlow";
+    public bool AutoRemediate => false;
+
+    public InvitationFlowHealthCheck(
+        IAuthentikClient authentikClient,
+        ILogger<InvitationFlowHealthCheck> logger)
+    {
+        _authentikClient = authentikClient;
+        _logger = logger;
+    }
+
+    public async Task<HealthCheckResult> RunAsync(Instance instance, CancellationToken ct)
+    {
+        var abbrev = instance.Customer.Abbreviation;
+        var expectedName = $"invite-{abbrev}";
+
+        try
+        {
+            // Search Authentik groups for evidence of the invitation flow
+            // The invitation is created as a stage invitation; we verify via the
+            // Authentik API by searching for it by name.
+            var groupResponse = await _authentikClient.ListGroupsAsync(expectedName);
+
+            if (groupResponse.IsSuccessStatusCode && groupResponse.Content?.Results is { Count: > 0 })
+            {
+                var found = groupResponse.Content.Results.Any(g =>
+                    g.TryGetValue("name", out var n) &&
+                    string.Equals(n?.ToString(), expectedName, StringComparison.OrdinalIgnoreCase));
+
+                if (found)
+                {
+                    return new HealthCheckResult(HealthStatus.Healthy,
+                        $"Invitation flow '{expectedName}' exists in Authentik");
+                }
+            }
+
+            // If groups don't show it, it's still possible the invitation was created
+            // as a separate stage object. Log as degraded since we can't fully confirm.
+            return new HealthCheckResult(HealthStatus.Degraded,
+                $"Invitation flow '{expectedName}' not found in Authentik",
+                "The invitation may exist but could not be verified via group search");
+        }
+        catch (Exception ex)
+        {
+            return new HealthCheckResult(HealthStatus.Critical,
+                $"Failed to check invitation flow: {ex.Message}");
+        }
+    }
+}

OTSSignsOrchestrator.Server/Health/Checks/MySqlConnectHealthCheck.cs

@@ -0,0 +1,106 @@
+using Renci.SshNet;
+using OTSSignsOrchestrator.Server.Data.Entities;
+
+namespace OTSSignsOrchestrator.Server.Health.Checks;
+
+/// <summary>
+/// Verifies connectivity to the instance's MySQL database by running a simple query
+/// via SSH against the Docker Swarm host.
+/// </summary>
+public sealed class MySqlConnectHealthCheck : IHealthCheck
+{
+    private readonly IServiceProvider _services;
+    private readonly ILogger<MySqlConnectHealthCheck> _logger;
+
+    public string CheckName => "MySqlConnect";
+    public bool AutoRemediate => false;
+
+    public MySqlConnectHealthCheck(
+        IServiceProvider services,
+        ILogger<MySqlConnectHealthCheck> logger)
+    {
+        _services = services;
+        _logger = logger;
+    }
+
+    public async Task<HealthCheckResult> RunAsync(Instance instance, CancellationToken ct)
+    {
+        var dbName = instance.MysqlDatabase;
+        if (string.IsNullOrEmpty(dbName))
+            return new HealthCheckResult(HealthStatus.Critical, "No MySQL database configured");
+
+        try
+        {
+            var settings = _services.GetRequiredService<Core.Services.SettingsService>();
+            var sshInfo = await GetSwarmSshHostAsync(settings);
+            var mysqlHost = await settings.GetAsync(Core.Services.SettingsService.MySqlHost, "localhost");
+            var mysqlPort = await settings.GetAsync(Core.Services.SettingsService.MySqlPort, "3306");
+            var mysqlUser = await settings.GetAsync(Core.Services.SettingsService.MySqlAdminUser, "root");
+            var mysqlPass = await settings.GetAsync(Core.Services.SettingsService.MySqlAdminPassword, "");
+
+            using var sshClient = CreateSshClient(sshInfo);
+            sshClient.Connect();
+            try
+            {
+                // Simple connectivity test — SELECT 1 against the instance database
+                var cmd = $"mysql -h {mysqlHost} -P {mysqlPort} -u {mysqlUser} " +
+                          $"-p'{mysqlPass}' -e 'SELECT 1' {dbName} 2>&1";
+                var output = RunSshCommand(sshClient, cmd);
+
+                return new HealthCheckResult(HealthStatus.Healthy,
+                    $"MySQL connection to {dbName} successful");
+            }
+            finally
+            {
+                sshClient.Disconnect();
+            }
+        }
+        catch (Exception ex)
+        {
+            return new HealthCheckResult(HealthStatus.Critical,
+                $"MySQL connection failed for {dbName}: {ex.Message}");
+        }
+    }
+
+    private static async Task<SshConnectionInfo> GetSwarmSshHostAsync(Core.Services.SettingsService settings)
+    {
+        var host = await settings.GetAsync("Ssh.SwarmHost")
+            ?? throw new InvalidOperationException("SSH Swarm host not configured.");
+        var portStr = await settings.GetAsync("Ssh.SwarmPort", "22");
+        var user = await settings.GetAsync("Ssh.SwarmUser", "root");
+        var keyPath = await settings.GetAsync("Ssh.SwarmKeyPath");
+        var password = await settings.GetAsync("Ssh.SwarmPassword");
+        if (!int.TryParse(portStr, out var port)) port = 22;
+        return new SshConnectionInfo(host, port, user, keyPath, password);
+    }
+
+    private static SshClient CreateSshClient(SshConnectionInfo info)
+    {
+        var authMethods = new List<AuthenticationMethod>();
+        if (!string.IsNullOrEmpty(info.KeyPath))
+            authMethods.Add(new PrivateKeyAuthenticationMethod(info.Username, new PrivateKeyFile(info.KeyPath)));
+        if (!string.IsNullOrEmpty(info.Password))
+            authMethods.Add(new PasswordAuthenticationMethod(info.Username, info.Password));
+        if (authMethods.Count == 0)
+        {
+            var defaultKeyPath = Path.Combine(
+                Environment.GetFolderPath(Environment.SpecialFolder.UserProfile), ".ssh", "id_rsa");
+            if (File.Exists(defaultKeyPath))
+                authMethods.Add(new PrivateKeyAuthenticationMethod(info.Username, new PrivateKeyFile(defaultKeyPath)));
+            else
+                throw new InvalidOperationException($"No SSH auth method for {info.Host}:{info.Port}.");
+        }
+        var connInfo = new Renci.SshNet.ConnectionInfo(info.Host, info.Port, info.Username, authMethods.ToArray());
+        return new SshClient(connInfo);
+    }
+
+    private static string RunSshCommand(SshClient client, string command)
+    {
+        using var cmd = client.RunCommand(command);
+        if (cmd.ExitStatus != 0)
+            throw new InvalidOperationException($"SSH command failed (exit {cmd.ExitStatus}): {cmd.Error}");
+        return cmd.Result;
+    }
+
+    internal sealed record SshConnectionInfo(string Host, int Port, string Username, string? KeyPath, string? Password);
+}

OTSSignsOrchestrator.Server/Health/Checks/NfsAccessHealthCheck.cs

@@ -0,0 +1,121 @@
+using Renci.SshNet;
+using OTSSignsOrchestrator.Server.Data.Entities;
+
+namespace OTSSignsOrchestrator.Server.Health.Checks;
+
+/// <summary>
+/// Verifies NFS paths for the instance are accessible by running <c>ls</c> via SSH.
+/// </summary>
+public sealed class NfsAccessHealthCheck : IHealthCheck
+{
+    private readonly IServiceProvider _services;
+    private readonly ILogger<NfsAccessHealthCheck> _logger;
+
+    public string CheckName => "NfsAccess";
+    public bool AutoRemediate => false;
+
+    public NfsAccessHealthCheck(
+        IServiceProvider services,
+        ILogger<NfsAccessHealthCheck> logger)
+    {
+        _services = services;
+        _logger = logger;
+    }
+
+    public async Task<HealthCheckResult> RunAsync(Instance instance, CancellationToken ct)
+    {
+        var nfsPath = instance.NfsPath;
+        if (string.IsNullOrEmpty(nfsPath))
+            return new HealthCheckResult(HealthStatus.Critical, "No NFS path configured");
+
+        try
+        {
+            var settings = _services.GetRequiredService<Core.Services.SettingsService>();
+            var sshInfo = await GetSwarmSshHostAsync(settings);
+            var nfsServer = await settings.GetAsync(Core.Services.SettingsService.NfsServer);
+            var nfsExport = await settings.GetAsync(Core.Services.SettingsService.NfsExport);
+
+            if (string.IsNullOrEmpty(nfsServer) || string.IsNullOrEmpty(nfsExport))
+                return new HealthCheckResult(HealthStatus.Critical, "NFS server/export not configured");
+
+            using var sshClient = CreateSshClient(sshInfo);
+            sshClient.Connect();
+            try
+            {
+                // Mount temporarily and check the path is listable
+                var mountPoint = $"/tmp/healthcheck-nfs-{Guid.NewGuid():N}";
+                RunSshCommand(sshClient, $"sudo mkdir -p {mountPoint}");
+                try
+                {
+                    RunSshCommand(sshClient, $"sudo mount -t nfs4 {nfsServer}:{nfsExport} {mountPoint}");
+                    var output = RunSshCommand(sshClient, $"ls {mountPoint}/{nfsPath} 2>&1");
+
+                    return new HealthCheckResult(HealthStatus.Healthy,
+                        $"NFS path accessible: {nfsPath}");
+                }
+                finally
+                {
+                    RunSshCommandAllowFailure(sshClient, $"sudo umount {mountPoint}");
+                    RunSshCommandAllowFailure(sshClient, $"sudo rmdir {mountPoint}");
+                }
+            }
+            finally
+            {
+                sshClient.Disconnect();
+            }
+        }
+        catch (Exception ex)
+        {
+            return new HealthCheckResult(HealthStatus.Critical,
+                $"NFS access check failed for {nfsPath}: {ex.Message}");
+        }
+    }
+
+    private static async Task<SshConnectionInfo> GetSwarmSshHostAsync(Core.Services.SettingsService settings)
+    {
+        var host = await settings.GetAsync("Ssh.SwarmHost")
+            ?? throw new InvalidOperationException("SSH Swarm host not configured.");
+        var portStr = await settings.GetAsync("Ssh.SwarmPort", "22");
+        var user = await settings.GetAsync("Ssh.SwarmUser", "root");
+        var keyPath = await settings.GetAsync("Ssh.SwarmKeyPath");
+        var password = await settings.GetAsync("Ssh.SwarmPassword");
+        if (!int.TryParse(portStr, out var port)) port = 22;
+        return new SshConnectionInfo(host, port, user, keyPath, password);
+    }
+
+    private static SshClient CreateSshClient(SshConnectionInfo info)
+    {
+        var authMethods = new List<AuthenticationMethod>();
+        if (!string.IsNullOrEmpty(info.KeyPath))
+            authMethods.Add(new PrivateKeyAuthenticationMethod(info.Username, new PrivateKeyFile(info.KeyPath)));
+        if (!string.IsNullOrEmpty(info.Password))
+            authMethods.Add(new PasswordAuthenticationMethod(info.Username, info.Password));
+        if (authMethods.Count == 0)
+        {
+            var defaultKeyPath = Path.Combine(
+                Environment.GetFolderPath(Environment.SpecialFolder.UserProfile), ".ssh", "id_rsa");
+            if (File.Exists(defaultKeyPath))
+                authMethods.Add(new PrivateKeyAuthenticationMethod(info.Username, new PrivateKeyFile(defaultKeyPath)));
+            else
+                throw new InvalidOperationException($"No SSH auth method for {info.Host}:{info.Port}.");
+        }
+        var connInfo = new Renci.SshNet.ConnectionInfo(info.Host, info.Port, info.Username, authMethods.ToArray());
+        return new SshClient(connInfo);
+    }
+
+    private static string RunSshCommand(SshClient client, string command)
+    {
+        using var cmd = client.RunCommand(command);
+        if (cmd.ExitStatus != 0)
+            throw new InvalidOperationException($"SSH command failed (exit {cmd.ExitStatus}): {cmd.Error}");
+        return cmd.Result;
+    }
+
+    private static void RunSshCommandAllowFailure(SshClient client, string command)
+    {
+        using var cmd = client.RunCommand(command);
+        // Intentionally ignore exit code — cleanup operations
+    }
+
+    internal sealed record SshConnectionInfo(string Host, int Port, string Username, string? KeyPath, string? Password);
+}

OTSSignsOrchestrator.Server/Health/Checks/OauthAppAgeHealthCheck.cs

@@ -0,0 +1,50 @@
+using OTSSignsOrchestrator.Server.Data.Entities;
+
+namespace OTSSignsOrchestrator.Server.Health.Checks;
+
+/// <summary>
+/// Checks the age of the OAuth2 application credentials from <see cref="OauthAppRegistry.CreatedAt"/>.
+/// Alerts Warning at 180 days, Critical at 365 days. AutoRemediate=false — suggests
+/// a "rotate-oauth2" job instead.
+/// </summary>
+public sealed class OauthAppAgeHealthCheck : IHealthCheck
+{
+    /// <summary>Days at which severity escalates to Warning.</summary>
+    internal const int WarningThresholdDays = 180;
+
+    /// <summary>Days at which severity escalates to Critical.</summary>
+    internal const int CriticalThresholdDays = 365;
+
+    public string CheckName => "OauthAppAge";
+    public bool AutoRemediate => false;
+
+    public Task<HealthCheckResult> RunAsync(Instance instance, CancellationToken ct)
+    {
+        var oauthApp = instance.OauthAppRegistries
+            .OrderByDescending(o => o.CreatedAt)
+            .FirstOrDefault();
+
+        if (oauthApp is null)
+            return Task.FromResult(new HealthCheckResult(HealthStatus.Degraded,
+                "No OAuth app registered"));
+
+        var ageDays = (DateTime.UtcNow - oauthApp.CreatedAt).TotalDays;
+
+        if (ageDays >= CriticalThresholdDays)
+        {
+            return Task.FromResult(new HealthCheckResult(HealthStatus.Critical,
+                $"OAuth2 credentials are {(int)ageDays} days old (critical threshold: {CriticalThresholdDays}d)",
+                "Create a 'rotate-credentials' job to rotate the OAuth2 application"));
+        }
+
+        if (ageDays >= WarningThresholdDays)
+        {
+            return Task.FromResult(new HealthCheckResult(HealthStatus.Degraded,
+                $"OAuth2 credentials are {(int)ageDays} days old (warning threshold: {WarningThresholdDays}d)",
+                "Schedule credential rotation before they reach 365 days"));
+        }
+
+        return Task.FromResult(new HealthCheckResult(HealthStatus.Healthy,
+            $"OAuth2 credentials are {(int)ageDays} days old"));
+    }
+}

OTSSignsOrchestrator.Server/Health/Checks/OauthAppHealthCheck.cs

@@ -0,0 +1,59 @@
+using OTSSignsOrchestrator.Server.Clients;
+using OTSSignsOrchestrator.Server.Data.Entities;
+
+namespace OTSSignsOrchestrator.Server.Health.Checks;
+
+/// <summary>
+/// Verifies the OAuth2 app in <see cref="OauthAppRegistry"/> can still authenticate
+/// by testing a <c>client_credentials</c> flow against the Xibo CMS instance.
+/// AutoRemediate=false — credential rotation requires a separate job.
+/// </summary>
+public sealed class OauthAppHealthCheck : IHealthCheck
+{
+    private readonly XiboClientFactory _clientFactory;
+    private readonly IServiceProvider _services;
+    private readonly ILogger<OauthAppHealthCheck> _logger;
+
+    public string CheckName => "OauthApp";
+    public bool AutoRemediate => false;
+
+    public OauthAppHealthCheck(
+        XiboClientFactory clientFactory,
+        IServiceProvider services,
+        ILogger<OauthAppHealthCheck> logger)
+    {
+        _clientFactory = clientFactory;
+        _services = services;
+        _logger = logger;
+    }
+
+    public async Task<HealthCheckResult> RunAsync(Instance instance, CancellationToken ct)
+    {
+        var oauthApp = instance.OauthAppRegistries.FirstOrDefault();
+        if (oauthApp is null)
+            return new HealthCheckResult(HealthStatus.Critical, "No OAuth app registered");
+
+        var abbrev = instance.Customer.Abbreviation;
+        var settings = _services.GetRequiredService<Core.Services.SettingsService>();
+        var secret = await settings.GetAsync(Core.Services.SettingsService.InstanceOAuthSecretId(abbrev));
+
+        if (string.IsNullOrEmpty(secret))
+            return new HealthCheckResult(HealthStatus.Critical,
+                "OAuth client secret not found in Bitwarden — cannot authenticate");
+
+        try
+        {
+            // Attempt to create a client (which fetches a token via client_credentials)
+            var client = await _clientFactory.CreateAsync(instance.XiboUrl, oauthApp.ClientId, secret);
+
+            // If we got here, the token was obtained successfully
+            return new HealthCheckResult(HealthStatus.Healthy, "OAuth2 client_credentials flow successful");
+        }
+        catch (Exception ex)
+        {
+            return new HealthCheckResult(HealthStatus.Critical,
+                $"OAuth2 authentication failed: {ex.Message}",
+                "Credential rotation job may be required");
+        }
+    }
+}

OTSSignsOrchestrator.Server/Health/Checks/StackHealthCheck.cs

@@ -0,0 +1,127 @@
+using Renci.SshNet;
+using OTSSignsOrchestrator.Server.Data.Entities;
+
+namespace OTSSignsOrchestrator.Server.Health.Checks;
+
+/// <summary>
+/// Verifies the Docker stack is healthy by running <c>docker stack ps {stackName}</c>
+/// via SSH and checking that all services report Running state.
+/// </summary>
+public sealed class StackHealthCheck : IHealthCheck
+{
+    private readonly IServiceProvider _services;
+    private readonly ILogger<StackHealthCheck> _logger;
+
+    public string CheckName => "StackHealth";
+    public bool AutoRemediate => false;
+
+    public StackHealthCheck(
+        IServiceProvider services,
+        ILogger<StackHealthCheck> logger)
+    {
+        _services = services;
+        _logger = logger;
+    }
+
+    public async Task<HealthCheckResult> RunAsync(Instance instance, CancellationToken ct)
+    {
+        var stackName = instance.DockerStackName;
+        if (string.IsNullOrEmpty(stackName))
+            return new HealthCheckResult(HealthStatus.Critical, "No Docker stack name configured");
+
+        try
+        {
+            var settings = _services.GetRequiredService<Core.Services.SettingsService>();
+            var sshInfo = await GetSwarmSshHostAsync(settings);
+
+            using var sshClient = CreateSshClient(sshInfo);
+            sshClient.Connect();
+
+            try
+            {
+                // Get task status for all services in the stack
+                var output = RunSshCommand(sshClient,
+                    $"docker stack ps {stackName} --format '{{{{.Name}}}}|{{{{.CurrentState}}}}|{{{{.DesiredState}}}}'");
+
+                var lines = output.Split('\n', StringSplitOptions.RemoveEmptyEntries);
+                var notRunning = new List<string>();
+
+                foreach (var line in lines)
+                {
+                    var parts = line.Split('|');
+                    if (parts.Length < 3) continue;
+
+                    var name = parts[0].Trim();
+                    var currentState = parts[1].Trim();
+                    var desiredState = parts[2].Trim();
+
+                    // Only check tasks whose desired state is Running
+                    if (desiredState.Equals("Running", StringComparison.OrdinalIgnoreCase) &&
+                        !currentState.StartsWith("Running", StringComparison.OrdinalIgnoreCase))
+                    {
+                        notRunning.Add($"{name}: {currentState}");
+                    }
+                }
+
+                if (notRunning.Count == 0)
+                    return new HealthCheckResult(HealthStatus.Healthy,
+                        $"All services in {stackName} are Running");
+
+                return new HealthCheckResult(HealthStatus.Critical,
+                    $"{notRunning.Count} service(s) not running in {stackName}",
+                    string.Join("\n", notRunning));
+            }
+            finally
+            {
+                sshClient.Disconnect();
+            }
+        }
+        catch (Exception ex)
+        {
+            return new HealthCheckResult(HealthStatus.Critical,
+                $"SSH check failed for {stackName}: {ex.Message}");
+        }
+    }
+
+    private static async Task<SshConnectionInfo> GetSwarmSshHostAsync(Core.Services.SettingsService settings)
+    {
+        var host = await settings.GetAsync("Ssh.SwarmHost")
+            ?? throw new InvalidOperationException("SSH Swarm host not configured.");
+        var portStr = await settings.GetAsync("Ssh.SwarmPort", "22");
+        var user = await settings.GetAsync("Ssh.SwarmUser", "root");
+        var keyPath = await settings.GetAsync("Ssh.SwarmKeyPath");
+        var password = await settings.GetAsync("Ssh.SwarmPassword");
+        if (!int.TryParse(portStr, out var port)) port = 22;
+        return new SshConnectionInfo(host, port, user, keyPath, password);
+    }
+
+    private static SshClient CreateSshClient(SshConnectionInfo info)
+    {
+        var authMethods = new List<AuthenticationMethod>();
+        if (!string.IsNullOrEmpty(info.KeyPath))
+            authMethods.Add(new PrivateKeyAuthenticationMethod(info.Username, new PrivateKeyFile(info.KeyPath)));
+        if (!string.IsNullOrEmpty(info.Password))
+            authMethods.Add(new PasswordAuthenticationMethod(info.Username, info.Password));
+        if (authMethods.Count == 0)
+        {
+            var defaultKeyPath = Path.Combine(
+                Environment.GetFolderPath(Environment.SpecialFolder.UserProfile), ".ssh", "id_rsa");
+            if (File.Exists(defaultKeyPath))
+                authMethods.Add(new PrivateKeyAuthenticationMethod(info.Username, new PrivateKeyFile(defaultKeyPath)));
+            else
+                throw new InvalidOperationException($"No SSH auth method for {info.Host}:{info.Port}.");
+        }
+        var connInfo = new Renci.SshNet.ConnectionInfo(info.Host, info.Port, info.Username, authMethods.ToArray());
+        return new SshClient(connInfo);
+    }
+
+    private static string RunSshCommand(SshClient client, string command)
+    {
+        using var cmd = client.RunCommand(command);
+        if (cmd.ExitStatus != 0)
+            throw new InvalidOperationException($"SSH command failed (exit {cmd.ExitStatus}): {cmd.Error}");
+        return cmd.Result;
+    }
+
+    internal sealed record SshConnectionInfo(string Host, int Port, string Username, string? KeyPath, string? Password);
+}

OTSSignsOrchestrator.Server/Health/Checks/ThemeHealthCheck.cs

@@ -0,0 +1,145 @@
+using OTSSignsOrchestrator.Server.Clients;
+using OTSSignsOrchestrator.Server.Data;
+using OTSSignsOrchestrator.Server.Data.Entities;
+
+namespace OTSSignsOrchestrator.Server.Health.Checks;
+
+/// <summary>
+/// Verifies the Xibo CMS theme is set to <c>otssigns</c> by calling <c>GET /api/settings</c>.
+/// Auto-remediates by calling <c>PUT /api/settings</c> if the theme is incorrect.
+/// </summary>
+public sealed class ThemeHealthCheck : IHealthCheck
+{
+    private readonly XiboClientFactory _clientFactory;
+    private readonly IServiceProvider _services;
+    private readonly ILogger<ThemeHealthCheck> _logger;
+
+    private const string ExpectedTheme = "otssigns";
+
+    public string CheckName => "Theme";
+    public bool AutoRemediate => true;
+
+    public ThemeHealthCheck(
+        XiboClientFactory clientFactory,
+        IServiceProvider services,
+        ILogger<ThemeHealthCheck> logger)
+    {
+        _clientFactory = clientFactory;
+        _services = services;
+        _logger = logger;
+    }
+
+    public async Task<HealthCheckResult> RunAsync(Instance instance, CancellationToken ct)
+    {
+        var (client, _) = await ResolveAsync(instance);
+        if (client is null)
+            return new HealthCheckResult(HealthStatus.Critical, "No OAuth app — cannot check theme");
+
+        try
+        {
+            var settingsResp = await client.GetSettingsAsync();
+            if (!settingsResp.IsSuccessStatusCode)
+                return new HealthCheckResult(HealthStatus.Critical,
+                    $"GET /settings returned {settingsResp.StatusCode}");
+
+            var settings = settingsResp.Content;
+            if (settings is null)
+                return new HealthCheckResult(HealthStatus.Critical, "Settings response was null");
+
+            // Xibo returns settings as a list of { setting, value } objects or a dictionary
+            var themeName = ExtractSetting(settings, "THEME_NAME");
+            if (string.Equals(themeName, ExpectedTheme, StringComparison.OrdinalIgnoreCase))
+                return new HealthCheckResult(HealthStatus.Healthy, $"Theme is {ExpectedTheme}");
+
+            return new HealthCheckResult(HealthStatus.Critical,
+                $"Theme is '{themeName}', expected '{ExpectedTheme}'");
+        }
+        catch (Exception ex)
+        {
+            return new HealthCheckResult(HealthStatus.Critical,
+                $"Theme check failed: {ex.Message}");
+        }
+    }
+
+    public async Task<bool> RemediateAsync(Instance instance, CancellationToken ct)
+    {
+        var (client, _) = await ResolveAsync(instance);
+        if (client is null) return false;
+
+        try
+        {
+            var resp = await client.UpdateSettingsAsync(
+                new UpdateSettingsRequest(new Dictionary<string, string>
+                {
+                    ["THEME_NAME"] = ExpectedTheme,
+                }));
+
+            if (resp.IsSuccessStatusCode)
+            {
+                await using var scope = _services.CreateAsyncScope();
+                var db = scope.ServiceProvider.GetRequiredService<OrchestratorDbContext>();
+                db.AuditLogs.Add(new AuditLog
+                {
+                    Id = Guid.NewGuid(),
+                    InstanceId = instance.Id,
+                    Actor = "HealthCheckEngine:Theme",
+                    Action = "FixTheme",
+                    Target = instance.Customer.Abbreviation,
+                    Outcome = "Success",
+                    Detail = $"Reset THEME_NAME to {ExpectedTheme}",
+                    OccurredAt = DateTime.UtcNow,
+                });
+                await db.SaveChangesAsync(ct);
+                return true;
+            }
+
+            _logger.LogError("Failed to fix theme: {Err}", resp.Error?.Content);
+            return false;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Theme remediation failed");
+            return false;
+        }
+    }
+
+    private static string? ExtractSetting(object settingsObj, string key)
+    {
+        // Settings may come back as a dictionary or a list of objects
+        if (settingsObj is System.Text.Json.JsonElement je)
+        {
+            if (je.ValueKind == System.Text.Json.JsonValueKind.Object &&
+                je.TryGetProperty(key, out var val))
+                return val.GetString();
+
+            if (je.ValueKind == System.Text.Json.JsonValueKind.Array)
+            {
+                foreach (var item in je.EnumerateArray())
+                {
+                    if (item.TryGetProperty("setting", out var settingProp) &&
+                        string.Equals(settingProp.GetString(), key, StringComparison.OrdinalIgnoreCase) &&
+                        item.TryGetProperty("value", out var valueProp))
+                    {
+                        return valueProp.GetString();
+                    }
+                }
+            }
+        }
+
+        return null;
+    }
+
+    private async Task<(IXiboApiClient? Client, string Abbrev)> ResolveAsync(Instance instance)
+    {
+        var abbrev = instance.Customer.Abbreviation;
+        var oauthApp = instance.OauthAppRegistries.FirstOrDefault();
+        if (oauthApp is null) return (null, abbrev);
+
+        var settings = _services.GetRequiredService<Core.Services.SettingsService>();
+        var secret = await settings.GetAsync(Core.Services.SettingsService.InstanceOAuthSecretId(abbrev));
+        if (string.IsNullOrEmpty(secret)) return (null, abbrev);
+
+        var client = await _clientFactory.CreateAsync(instance.XiboUrl, oauthApp.ClientId, secret);
+        return (client, abbrev);
+    }
+}

OTSSignsOrchestrator.Server/Health/Checks/XiboApiHealthCheck.cs

@@ -0,0 +1,61 @@
+using OTSSignsOrchestrator.Server.Clients;
+using OTSSignsOrchestrator.Server.Data.Entities;
+
+namespace OTSSignsOrchestrator.Server.Health.Checks;
+
+/// <summary>
+/// Verifies the Xibo CMS API is reachable by calling GET /about and expecting a 200 response.
+/// </summary>
+public sealed class XiboApiHealthCheck : IHealthCheck
+{
+    private readonly XiboClientFactory _clientFactory;
+    private readonly IServiceProvider _services;
+    private readonly ILogger<XiboApiHealthCheck> _logger;
+
+    public string CheckName => "XiboApi";
+    public bool AutoRemediate => false;
+
+    public XiboApiHealthCheck(
+        XiboClientFactory clientFactory,
+        IServiceProvider services,
+        ILogger<XiboApiHealthCheck> logger)
+    {
+        _clientFactory = clientFactory;
+        _services = services;
+        _logger = logger;
+    }
+
+    public async Task<HealthCheckResult> RunAsync(Instance instance, CancellationToken ct)
+    {
+        var client = await ResolveClientAsync(instance);
+        if (client is null)
+            return new HealthCheckResult(HealthStatus.Critical, "No OAuth app registered — cannot reach API");
+
+        try
+        {
+            var response = await client.GetAboutAsync();
+            return response.IsSuccessStatusCode
+                ? new HealthCheckResult(HealthStatus.Healthy, "Xibo API reachable")
+                : new HealthCheckResult(HealthStatus.Critical,
+                    $"Xibo API returned {response.StatusCode}",
+                    response.Error?.Content);
+        }
+        catch (Exception ex)
+        {
+            return new HealthCheckResult(HealthStatus.Critical, $"Xibo API unreachable: {ex.Message}");
+        }
+    }
+
+    private async Task<IXiboApiClient?> ResolveClientAsync(Instance instance)
+    {
+        var oauthApp = instance.OauthAppRegistries.FirstOrDefault();
+        if (oauthApp is null) return null;
+
+        var settings = _services.GetRequiredService<OTSSignsOrchestrator.Core.Services.SettingsService>();
+        var abbrev = instance.Customer.Abbreviation;
+        var secret = await settings.GetAsync(Core.Services.SettingsService.InstanceOAuthSecretId(abbrev));
+        if (string.IsNullOrEmpty(secret)) return null;
+
+        return await _clientFactory.CreateAsync(instance.XiboUrl, oauthApp.ClientId, secret);
+    }
+}

OTSSignsOrchestrator.Server/Health/Checks/XiboVersionHealthCheck.cs

@@ -0,0 +1,87 @@
+using OTSSignsOrchestrator.Server.Clients;
+using OTSSignsOrchestrator.Server.Data.Entities;
+using Microsoft.Extensions.Configuration;
+
+namespace OTSSignsOrchestrator.Server.Health.Checks;
+
+/// <summary>
+/// Compares the installed Xibo CMS version (from GET /about) against the latest known
+/// release configured in <c>HealthChecks:LatestXiboVersion</c>. Reports Degraded if behind.
+/// </summary>
+public sealed class XiboVersionHealthCheck : IHealthCheck
+{
+    private readonly XiboClientFactory _clientFactory;
+    private readonly IServiceProvider _services;
+    private readonly IConfiguration _configuration;
+    private readonly ILogger<XiboVersionHealthCheck> _logger;
+
+    public string CheckName => "XiboVersion";
+    public bool AutoRemediate => false;
+
+    public XiboVersionHealthCheck(
+        XiboClientFactory clientFactory,
+        IServiceProvider services,
+        IConfiguration configuration,
+        ILogger<XiboVersionHealthCheck> logger)
+    {
+        _clientFactory = clientFactory;
+        _services = services;
+        _configuration = configuration;
+        _logger = logger;
+    }
+
+    public async Task<HealthCheckResult> RunAsync(Instance instance, CancellationToken ct)
+    {
+        var latestVersion = _configuration["HealthChecks:LatestXiboVersion"];
+        if (string.IsNullOrEmpty(latestVersion))
+            return new HealthCheckResult(HealthStatus.Healthy, "LatestXiboVersion not configured — skipping");
+
+        var (client, _) = await ResolveAsync(instance);
+        if (client is null)
+            return new HealthCheckResult(HealthStatus.Critical, "No OAuth app — cannot check version");
+
+        try
+        {
+            var response = await client.GetAboutAsync();
+            if (!response.IsSuccessStatusCode || response.Content is null)
+                return new HealthCheckResult(HealthStatus.Critical, "GET /about failed");
+
+            string? installedVersion = null;
+            if (response.Content is System.Text.Json.JsonElement je &&
+                je.TryGetProperty("version", out var verProp))
+            {
+                installedVersion = verProp.GetString();
+            }
+
+            if (string.IsNullOrEmpty(installedVersion))
+                return new HealthCheckResult(HealthStatus.Degraded, "Could not determine installed version");
+
+            if (string.Equals(installedVersion, latestVersion, StringComparison.OrdinalIgnoreCase))
+                return new HealthCheckResult(HealthStatus.Healthy,
+                    $"Xibo version {installedVersion} is current");
+
+            return new HealthCheckResult(HealthStatus.Degraded,
+                $"Xibo version {installedVersion}, latest is {latestVersion}",
+                "Consider scheduling an upgrade");
+        }
+        catch (Exception ex)
+        {
+            return new HealthCheckResult(HealthStatus.Critical,
+                $"Version check failed: {ex.Message}");
+        }
+    }
+
+    private async Task<(IXiboApiClient? Client, string Abbrev)> ResolveAsync(Instance instance)
+    {
+        var abbrev = instance.Customer.Abbreviation;
+        var oauthApp = instance.OauthAppRegistries.FirstOrDefault();
+        if (oauthApp is null) return (null, abbrev);
+
+        var settings = _services.GetRequiredService<Core.Services.SettingsService>();
+        var secret = await settings.GetAsync(Core.Services.SettingsService.InstanceOAuthSecretId(abbrev));
+        if (string.IsNullOrEmpty(secret)) return (null, abbrev);
+
+        var client = await _clientFactory.CreateAsync(instance.XiboUrl, oauthApp.ClientId, secret);
+        return (client, abbrev);
+    }
+}

OTSSignsOrchestrator.Server/Health/HealthCheckEngine.cs

@@ -0,0 +1,289 @@
+using Microsoft.AspNetCore.SignalR;
+using Microsoft.EntityFrameworkCore;
+using Quartz;
+using OTSSignsOrchestrator.Server.Data;
+using OTSSignsOrchestrator.Server.Data.Entities;
+using OTSSignsOrchestrator.Server.Hubs;
+
+namespace OTSSignsOrchestrator.Server.Health;
+
+/// <summary>
+/// Background service that schedules and runs all <see cref="IHealthCheck"/> implementations
+/// against every active <see cref="Instance"/>. Persists <see cref="HealthEvent"/> rows,
+/// aggregates worst-severity to update <see cref="Instance.HealthStatus"/>,
+/// broadcasts changes via <see cref="FleetHub"/>, and triggers auto-remediation when applicable.
+///
+/// Uses Quartz to stagger per-instance jobs across the check interval (avoids thundering herd).
+/// Concurrency is capped at 4 simultaneous check runs via <see cref="SemaphoreSlim"/>.
+/// </summary>
+public sealed class HealthCheckEngine : BackgroundService
+{
+    private readonly IServiceProvider _services;
+    private readonly ISchedulerFactory _schedulerFactory;
+    private readonly ILogger<HealthCheckEngine> _logger;
+
+    /// <summary>Default interval between full health-check sweeps.</summary>
+    internal static readonly TimeSpan DefaultCheckInterval = TimeSpan.FromMinutes(5);
+
+    public HealthCheckEngine(
+        IServiceProvider services,
+        ISchedulerFactory schedulerFactory,
+        ILogger<HealthCheckEngine> logger)
+    {
+        _services = services;
+        _schedulerFactory = schedulerFactory;
+        _logger = logger;
+    }
+
+    protected override async Task ExecuteAsync(CancellationToken stoppingToken)
+    {
+        // Wait briefly for the rest of the app to start
+        await Task.Delay(TimeSpan.FromSeconds(5), stoppingToken);
+
+        var scheduler = await _schedulerFactory.GetScheduler(stoppingToken);
+
+        while (!stoppingToken.IsCancellationRequested)
+        {
+            try
+            {
+                await ScheduleInstanceChecks(scheduler, stoppingToken);
+            }
+            catch (Exception ex) when (ex is not OperationCanceledException)
+            {
+                _logger.LogError(ex, "Error scheduling health check sweep");
+            }
+
+            await Task.Delay(DefaultCheckInterval, stoppingToken);
+        }
+    }
+
+    /// <summary>
+    /// Load all active instances and schedule staggered Quartz jobs so that
+    /// check start times are spread across the interval.
+    /// </summary>
+    private async Task ScheduleInstanceChecks(IScheduler scheduler, CancellationToken ct)
+    {
+        await using var scope = _services.CreateAsyncScope();
+        var db = scope.ServiceProvider.GetRequiredService<OrchestratorDbContext>();
+
+        var instances = await db.Instances
+            .AsNoTracking()
+            .Include(i => i.Customer)
+            .Where(i => i.Customer.Status == CustomerStatus.Active)
+            .ToListAsync(ct);
+
+        if (instances.Count == 0)
+            return;
+
+        // Spread jobs across 80 % of the check interval to leave a buffer
+        var spreadMs = (int)(DefaultCheckInterval.TotalMilliseconds * 0.8);
+        var stepMs = instances.Count > 1 ? spreadMs / (instances.Count - 1) : 0;
+
+        for (var i = 0; i < instances.Count; i++)
+        {
+            var instance = instances[i];
+            var delay = TimeSpan.FromMilliseconds(stepMs * i);
+
+            var jobKey = new JobKey($"health-{instance.Id}", "health-checks");
+
+            // Remove previous trigger if it still exists (idempotent reschedule)
+            if (await scheduler.CheckExists(jobKey, ct))
+                await scheduler.DeleteJob(jobKey, ct);
+
+            var job = JobBuilder.Create<InstanceHealthCheckJob>()
+                .WithIdentity(jobKey)
+                .UsingJobData("instanceId", instance.Id.ToString())
+                .Build();
+
+            var trigger = TriggerBuilder.Create()
+                .WithIdentity($"health-{instance.Id}-trigger", "health-checks")
+                .StartAt(DateTimeOffset.UtcNow.Add(delay))
+                .Build();
+
+            await scheduler.ScheduleJob(job, trigger, ct);
+        }
+
+        _logger.LogInformation(
+            "Scheduled health checks for {Count} active instance(s)", instances.Count);
+    }
+}
+
+/// <summary>
+/// Quartz job that executes all <see cref="IHealthCheck"/> implementations for a single instance.
+/// </summary>
+[DisallowConcurrentExecution]
+public sealed class InstanceHealthCheckJob : IJob
+{
+    /// <summary>Global concurrency limiter — max 4 parallel health check runs.</summary>
+    private static readonly SemaphoreSlim s_concurrency = new(4);
+
+    private readonly IServiceProvider _services;
+    private readonly ILogger<InstanceHealthCheckJob> _logger;
+
+    public InstanceHealthCheckJob(
+        IServiceProvider services,
+        ILogger<InstanceHealthCheckJob> logger)
+    {
+        _services = services;
+        _logger = logger;
+    }
+
+    public async Task Execute(IJobExecutionContext context)
+    {
+        var instanceIdStr = context.MergedJobDataMap.GetString("instanceId");
+        if (!Guid.TryParse(instanceIdStr, out var instanceId))
+        {
+            _logger.LogWarning("InstanceHealthCheckJob: invalid instanceId {Id}", instanceIdStr);
+            return;
+        }
+
+        await s_concurrency.WaitAsync(context.CancellationToken);
+        try
+        {
+            await RunChecksForInstanceAsync(instanceId, context.CancellationToken);
+        }
+        finally
+        {
+            s_concurrency.Release();
+        }
+    }
+
+    private async Task RunChecksForInstanceAsync(Guid instanceId, CancellationToken ct)
+    {
+        await using var scope = _services.CreateAsyncScope();
+        var db = scope.ServiceProvider.GetRequiredService<OrchestratorDbContext>();
+        var hub = scope.ServiceProvider.GetRequiredService<IHubContext<FleetHub, IFleetClient>>();
+        var checks = scope.ServiceProvider.GetServices<IHealthCheck>();
+
+        var instance = await db.Instances
+            .Include(i => i.Customer)
+            .Include(i => i.OauthAppRegistries)
+            .Include(i => i.ByoiConfigs)
+            .FirstOrDefaultAsync(i => i.Id == instanceId, ct);
+
+        if (instance is null)
+        {
+            _logger.LogWarning("InstanceHealthCheckJob: instance {Id} not found", instanceId);
+            return;
+        }
+
+        var abbrev = instance.Customer.Abbreviation;
+        var worstStatus = HealthStatus.Healthy;
+
+        foreach (var check in checks)
+        {
+            // Skip the AuthentikGlobalHealthCheck — it runs on its own schedule
+            if (check.CheckName == "AuthentikGlobal")
+                continue;
+
+            HealthCheckResult result;
+            try
+            {
+                result = await check.RunAsync(instance, ct);
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Health check {Check} failed for {Abbrev}", check.CheckName, abbrev);
+                result = new HealthCheckResult(HealthStatus.Critical, $"Check threw exception: {ex.Message}");
+            }
+
+            // Persist HealthEvent
+            var healthEvent = new HealthEvent
+            {
+                Id = Guid.NewGuid(),
+                InstanceId = instanceId,
+                CheckName = check.CheckName,
+                Status = ToEventStatus(result.Status),
+                Message = result.Message,
+                Remediated = false,
+                OccurredAt = DateTime.UtcNow,
+            };
+
+            // Auto-remediation
+            if (check.AutoRemediate && result.Status == HealthStatus.Critical)
+            {
+                try
+                {
+                    var fixed_ = await check.RemediateAsync(instance, ct);
+                    healthEvent.Remediated = fixed_;
+
+                    // Append-only audit log
+                    db.AuditLogs.Add(new AuditLog
+                    {
+                        Id = Guid.NewGuid(),
+                        InstanceId = instanceId,
+                        Actor = $"HealthCheckEngine:{check.CheckName}",
+                        Action = "AutoRemediate",
+                        Target = abbrev,
+                        Outcome = fixed_ ? "Success" : "Failed",
+                        Detail = result.Detail,
+                        OccurredAt = DateTime.UtcNow,
+                    });
+
+                    if (fixed_)
+                    {
+                        _logger.LogInformation(
+                            "Auto-remediated {Check} for {Abbrev}", check.CheckName, abbrev);
+                        // Downgrade severity since we fixed it
+                        healthEvent.Status = HealthEventStatus.Healthy;
+                    }
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogError(ex, "Remediation for {Check} failed on {Abbrev}", check.CheckName, abbrev);
+                    db.AuditLogs.Add(new AuditLog
+                    {
+                        Id = Guid.NewGuid(),
+                        InstanceId = instanceId,
+                        Actor = $"HealthCheckEngine:{check.CheckName}",
+                        Action = "AutoRemediate",
+                        Target = abbrev,
+                        Outcome = "Error",
+                        Detail = ex.Message,
+                        OccurredAt = DateTime.UtcNow,
+                    });
+                }
+            }
+
+            db.HealthEvents.Add(healthEvent);
+
+            // Track worst severity (only from non-remediated results)
+            if (!healthEvent.Remediated)
+            {
+                var status = FromEventStatus(healthEvent.Status);
+                if (status > worstStatus)
+                    worstStatus = status;
+            }
+        }
+
+        // Update instance health status
+        var previousStatus = instance.HealthStatus;
+        instance.HealthStatus = worstStatus;
+        instance.LastHealthCheck = DateTime.UtcNow;
+
+        await db.SaveChangesAsync(ct);
+
+        // Broadcast status change
+        if (previousStatus != worstStatus)
+        {
+            await hub.Clients.All.SendInstanceStatusChanged(
+                instance.CustomerId.ToString(), worstStatus.ToString());
+        }
+    }
+
+    private static HealthEventStatus ToEventStatus(HealthStatus status) => status switch
+    {
+        HealthStatus.Healthy => HealthEventStatus.Healthy,
+        HealthStatus.Degraded => HealthEventStatus.Degraded,
+        HealthStatus.Critical => HealthEventStatus.Critical,
+        _ => HealthEventStatus.Critical,
+    };
+
+    private static HealthStatus FromEventStatus(HealthEventStatus status) => status switch
+    {
+        HealthEventStatus.Healthy => HealthStatus.Healthy,
+        HealthEventStatus.Degraded => HealthStatus.Degraded,
+        HealthEventStatus.Critical => HealthStatus.Critical,
+        _ => HealthStatus.Critical,
+    };
+}

OTSSignsOrchestrator.Server/Health/IHealthCheck.cs

@@ -0,0 +1,32 @@
+using OTSSignsOrchestrator.Server.Data.Entities;
+
+namespace OTSSignsOrchestrator.Server.Health;
+
+/// <summary>
+/// Result of a single health check execution.
+/// </summary>
+public record HealthCheckResult(HealthStatus Status, string Message, string? Detail = null);
+
+/// <summary>
+/// Contract for an individual health check that runs against a specific <see cref="Instance"/>.
+/// </summary>
+public interface IHealthCheck
+{
+    /// <summary>Human-readable name written to <see cref="HealthEvent.CheckName"/>.</summary>
+    string CheckName { get; }
+
+    /// <summary>
+    /// When true the engine will automatically call <see cref="RemediateAsync"/>
+    /// if the check returns <see cref="HealthStatus.Critical"/>.
+    /// </summary>
+    bool AutoRemediate { get; }
+
+    /// <summary>Execute the check for <paramref name="instance"/>.</summary>
+    Task<HealthCheckResult> RunAsync(Instance instance, CancellationToken ct);
+
+    /// <summary>
+    /// Attempt automatic remediation. Return true if the issue was fixed.
+    /// The default implementation does nothing and returns false.
+    /// </summary>
+    Task<bool> RemediateAsync(Instance instance, CancellationToken ct) => Task.FromResult(false);
+}

OTSSignsOrchestrator.Server/Hubs/FleetHub.cs

@@ -0,0 +1,49 @@
+using System.Security.Claims;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.SignalR;
+
+namespace OTSSignsOrchestrator.Server.Hubs;
+
+/// <summary>
+/// Server→client push-only hub for real-time fleet notifications.
+/// Desktop clients never send messages via SignalR — they use REST for commands.
+/// </summary>
+[Authorize]
+public class FleetHub : Hub<IFleetClient>
+{
+    private readonly ILogger<FleetHub> _logger;
+
+    public FleetHub(ILogger<FleetHub> logger)
+    {
+        _logger = logger;
+    }
+
+    public override Task OnConnectedAsync()
+    {
+        var name = Context.User?.FindFirst(ClaimTypes.Name)?.Value ?? "unknown";
+        _logger.LogInformation("FleetHub: operator {Name} connected (connId={ConnectionId})",
+            name, Context.ConnectionId);
+        return base.OnConnectedAsync();
+    }
+
+    public override Task OnDisconnectedAsync(Exception? exception)
+    {
+        var name = Context.User?.FindFirst(ClaimTypes.Name)?.Value ?? "unknown";
+        _logger.LogInformation("FleetHub: operator {Name} disconnected (connId={ConnectionId})",
+            name, Context.ConnectionId);
+        return base.OnDisconnectedAsync(exception);
+    }
+}
+
+/// <summary>
+/// Strongly-typed client interface for FleetHub push messages.
+/// Inject IHubContext&lt;FleetHub, IFleetClient&gt; to call these from services.
+/// </summary>
+public interface IFleetClient
+{
+    Task SendJobCreated(string jobId, string abbrev, string jobType);
+    Task SendJobProgressUpdate(string jobId, string stepName, int pct, string logLine);
+    Task SendJobCompleted(string jobId, bool success, string summary);
+    Task SendInstanceStatusChanged(string customerId, string status);
+    Task SendAlertRaised(string severity, string message);
+}

OTSSignsOrchestrator.Server/Jobs/ByoiCertExpiryJob.cs

@@ -0,0 +1,106 @@
+using Microsoft.AspNetCore.SignalR;
+using Microsoft.EntityFrameworkCore;
+using Quartz;
+using OTSSignsOrchestrator.Server.Data;
+using OTSSignsOrchestrator.Server.Data.Entities;
+using OTSSignsOrchestrator.Server.Hubs;
+
+namespace OTSSignsOrchestrator.Server.Jobs;
+
+/// <summary>
+/// Quartz job that runs daily to check BYOI certificate expiry dates across all enabled
+/// ByoiConfig entries. Alerts at 60, 30, and 7 day thresholds via FleetHub and logs to AuditLog.
+///
+/// Severity escalation:
+///   - &gt; 7 days remaining  → "Warning"
+///   - ≤ 7 days remaining  → "Critical"
+/// </summary>
+// IMMUTABLE AuditLog — this job only appends, never updates or deletes audit records.
+[DisallowConcurrentExecution]
+public sealed class ByoiCertExpiryJob : IJob
+{
+    /// <summary>Alert thresholds in days. Alerts fire when remaining days ≤ threshold.</summary>
+    internal static readonly int[] AlertThresholdDays = [60, 30, 7];
+
+    /// <summary>Days at or below which severity escalates to "Critical".</summary>
+    internal const int CriticalThresholdDays = 7;
+
+    private readonly IServiceProvider _services;
+    private readonly ILogger<ByoiCertExpiryJob> _logger;
+
+    public ByoiCertExpiryJob(
+        IServiceProvider services,
+        ILogger<ByoiCertExpiryJob> logger)
+    {
+        _services = services;
+        _logger = logger;
+    }
+
+    public async Task Execute(IJobExecutionContext context)
+    {
+        await using var scope = _services.CreateAsyncScope();
+        var db = scope.ServiceProvider.GetRequiredService<OrchestratorDbContext>();
+        var hub = scope.ServiceProvider.GetRequiredService<IHubContext<FleetHub, IFleetClient>>();
+
+        var configs = await db.ByoiConfigs
+            .AsNoTracking()
+            .Include(b => b.Instance)
+                .ThenInclude(i => i.Customer)
+            .Where(b => b.Enabled)
+            .ToListAsync(context.CancellationToken);
+
+        foreach (var config in configs)
+        {
+            var daysRemaining = (config.CertExpiry - DateTime.UtcNow).TotalDays;
+            var abbrev = config.Instance.Customer.Abbreviation;
+
+            if (!ShouldAlert(daysRemaining))
+                continue;
+
+            var severity = GetSeverity(daysRemaining);
+            var daysInt = (int)Math.Floor(daysRemaining);
+            var message = daysRemaining <= 0
+                ? $"BYOI cert for {abbrev} has EXPIRED."
+                : $"BYOI cert for {abbrev} expires in {daysInt} days.";
+
+            _logger.LogWarning("BYOI cert expiry alert: {Severity} — {Message}", severity, message);
+
+            await hub.Clients.All.SendAlertRaised(severity, message);
+
+            // Append-only audit log
+            db.AuditLogs.Add(new AuditLog
+            {
+                Id = Guid.NewGuid(),
+                InstanceId = config.InstanceId,
+                Actor = "ByoiCertExpiryJob",
+                Action = "CertExpiryAlert",
+                Target = config.Slug,
+                Outcome = severity,
+                Detail = message,
+                OccurredAt = DateTime.UtcNow,
+            });
+        }
+
+        await db.SaveChangesAsync(context.CancellationToken);
+    }
+
+    /// <summary>
+    /// Determines whether an alert should fire based on remaining days.
+    /// Alerts at ≤ 60, ≤ 30, ≤ 7 days (or already expired).
+    /// </summary>
+    internal static bool ShouldAlert(double daysRemaining)
+    {
+        foreach (var threshold in AlertThresholdDays)
+        {
+            if (daysRemaining <= threshold)
+                return true;
+        }
+        return false;
+    }
+
+    /// <summary>
+    /// Returns "Critical" when ≤ 7 days remain, otherwise "Warning".
+    /// </summary>
+    internal static string GetSeverity(double daysRemaining) =>
+        daysRemaining <= CriticalThresholdDays ? "Critical" : "Warning";
+}

OTSSignsOrchestrator.Server/Jobs/DailySnapshotJob.cs

@@ -0,0 +1,118 @@
+using Microsoft.EntityFrameworkCore;
+using Quartz;
+using OTSSignsOrchestrator.Server.Clients;
+using OTSSignsOrchestrator.Server.Data;
+using OTSSignsOrchestrator.Server.Data.Entities;
+
+namespace OTSSignsOrchestrator.Server.Jobs;
+
+/// <summary>
+/// Quartz job scheduled at 2 AM UTC daily (<c>0 0 2 * * ?</c>).
+/// For each active <see cref="Instance"/>: calls <see cref="XiboApiClientExtensions.GetAllPagesAsync{T}"/>
+/// with <c>authorised=1</c> to count authorised displays; inserts a <see cref="ScreenSnapshot"/> row.
+///
+/// Uses ON CONFLICT DO NOTHING semantics to protect against double-runs.
+/// THIS DATA CANNOT BE RECOVERED — if the job misses a day, that data is permanently lost.
+/// </summary>
+[DisallowConcurrentExecution]
+public sealed class DailySnapshotJob : IJob
+{
+    private readonly IServiceProvider _services;
+    private readonly ILogger<DailySnapshotJob> _logger;
+
+    public DailySnapshotJob(
+        IServiceProvider services,
+        ILogger<DailySnapshotJob> logger)
+    {
+        _services = services;
+        _logger = logger;
+    }
+
+    public async Task Execute(IJobExecutionContext context)
+    {
+        await using var scope = _services.CreateAsyncScope();
+        var db = scope.ServiceProvider.GetRequiredService<OrchestratorDbContext>();
+        var clientFactory = scope.ServiceProvider.GetRequiredService<XiboClientFactory>();
+        var settings = scope.ServiceProvider.GetRequiredService<Core.Services.SettingsService>();
+
+        var today = DateOnly.FromDateTime(DateTime.UtcNow);
+
+        var instances = await db.Instances
+            .Include(i => i.Customer)
+            .Include(i => i.OauthAppRegistries)
+            .Where(i => i.Customer.Status == CustomerStatus.Active)
+            .ToListAsync(context.CancellationToken);
+
+        _logger.LogInformation("DailySnapshotJob: processing {Count} active instance(s) for {Date}",
+            instances.Count, today);
+
+        foreach (var instance in instances)
+        {
+            var abbrev = instance.Customer.Abbreviation;
+            try
+            {
+                var oauthApp = instance.OauthAppRegistries.FirstOrDefault();
+                if (oauthApp is null)
+                {
+                    _logger.LogWarning(
+                        "DailySnapshotJob: skipping {Abbrev} — no OAuth app registered", abbrev);
+                    continue;
+                }
+
+                var secret = await settings.GetAsync(
+                    Core.Services.SettingsService.InstanceOAuthSecretId(abbrev));
+                if (string.IsNullOrEmpty(secret))
+                {
+                    _logger.LogWarning(
+                        "DailySnapshotJob: skipping {Abbrev} — OAuth secret not found", abbrev);
+                    continue;
+                }
+
+                var client = await clientFactory.CreateAsync(
+                    instance.XiboUrl, oauthApp.ClientId, secret);
+
+                var displays = await client.GetAllPagesAsync(
+                    (start, length) => client.GetDisplaysAsync(start, length, authorised: 1));
+
+                var screenCount = displays.Count;
+
+                // ON CONFLICT DO NOTHING — protect against double-runs.
+                // Check if a snapshot already exists for this instance + date.
+                var exists = await db.ScreenSnapshots.AnyAsync(
+                    s => s.InstanceId == instance.Id && s.SnapshotDate == today,
+                    context.CancellationToken);
+
+                if (!exists)
+                {
+                    db.ScreenSnapshots.Add(new ScreenSnapshot
+                    {
+                        Id = Guid.NewGuid(),
+                        InstanceId = instance.Id,
+                        SnapshotDate = today,
+                        ScreenCount = screenCount,
+                        CreatedAt = DateTime.UtcNow,
+                    });
+
+                    _logger.LogInformation(
+                        "DailySnapshotJob: {Abbrev} — {Count} authorised display(s)",
+                        abbrev, screenCount);
+                }
+                else
+                {
+                    _logger.LogInformation(
+                        "DailySnapshotJob: {Abbrev} — snapshot already exists for {Date}, skipping",
+                        abbrev, today);
+                }
+            }
+            catch (Exception ex)
+            {
+                // THIS DATA CANNOT BE RECOVERED — log prominently
+                _logger.LogWarning(ex,
+                    "DailySnapshotJob: FAILED to capture snapshot for {Abbrev} on {Date}. " +
+                    "This data is permanently lost.", abbrev, today);
+            }
+        }
+
+        await db.SaveChangesAsync(context.CancellationToken);
+    }
+}