feat: Add initial deployment setup for OTSSignsOrchestrator

- Create index.html for the web application interface.
- Implement deploy.sh script for building and deploying the application to a Docker Swarm manager.
- Add docker-compose.yml for defining application and PostgreSQL service configurations.

docker-compose.yml

@@ -0,0 +1,56 @@
+services:
+  app:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    restart: unless-stopped
+    ports:
+      - "8080:8080"
+    environment:
+      ASPNETCORE_ENVIRONMENT: Production
+      # ── Database ───────────────────────────────────────────────────────────
+      ConnectionStrings__OrchestratorDb: "Host=postgres;Port=5432;Database=orchestrator;Username=ots;Password=${POSTGRES_PASSWORD}"
+      # ── JWT ────────────────────────────────────────────────────────────────
+      Jwt__Key: "${JWT_KEY}"
+      Jwt__Issuer: "OTSSignsOrchestrator"
+      Jwt__Audience: "OTSSignsOrchestrator"
+      # ── Bitwarden ──────────────────────────────────────────────────────────
+      Bitwarden__AccessToken: "${BITWARDEN_ACCESS_TOKEN}"
+      Bitwarden__OrganizationId: "${BITWARDEN_ORG_ID}"
+      Bitwarden__ProjectId: "${BITWARDEN_PROJECT_ID}"
+      # Bitwarden__InstanceProjectId: "${BITWARDEN_INSTANCE_PROJECT_ID}"
+      # ── Stripe ─────────────────────────────────────────────────────────────
+      Stripe__SecretKey: "${STRIPE_SECRET_KEY}"
+      Stripe__WebhookSecret: "${STRIPE_WEBHOOK_SECRET}"
+      # ── Authentik ──────────────────────────────────────────────────────────
+      Authentik__BaseUrl: "${AUTHENTIK_BASE_URL}"
+      Authentik__ApiToken: "${AUTHENTIK_API_TOKEN}"
+      Authentik__OtsSigningKpId: "${AUTHENTIK_OTS_SIGNING_KP_ID}"
+      # ── Email ──────────────────────────────────────────────────────────────
+      Email__SendGridApiKey: "${SENDGRID_API_KEY}"
+    volumes:
+      - dataprotection_keys:/app/dataprotection-keys
+    depends_on:
+      postgres:
+        condition: service_healthy
+
+  postgres:
+    image: postgres:16
+    restart: unless-stopped
+    environment:
+      POSTGRES_DB: orchestrator
+      POSTGRES_USER: ots
+      POSTGRES_PASSWORD: "${POSTGRES_PASSWORD}"
+    ports:
+      - "5432:5432"
+    volumes:
+      - pgdata:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U ots -d orchestrator"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+
+volumes:
+  pgdata:
+  dataprotection_keys: