Add WAL file for database and log instance deployment failures

OTSSignsOrchestrator.Core/Models/DTOs/CreateInstanceDto.cs

@@ -22,24 +22,19 @@ public class CreateInstanceDto
     [MaxLength(500)]
     public string? NewtSecret { get; set; }
 
-    // ── CIFS / SMB credentials (optional — falls back to global settings) ──
+    // ── NFS volume settings (optional — falls back to global settings) ──
 
     [MaxLength(200)]
-    public string? CifsServer { get; set; }
+    public string? NfsServer { get; set; }
+
+    /// <summary>NFS export path on the server (e.g. "/srv/nfs").</summary>
+    [MaxLength(500)]
+    public string? NfsExport { get; set; }
+
+    /// <summary>Optional subfolder within the export (e.g. "ots_cms"). Omit to use the export root.</summary>
+    [MaxLength(500)]
+    public string? NfsExportFolder { get; set; }
 
     [MaxLength(500)]
-    public string? CifsShareName { get; set; }
-
-    /// <summary>Optional subfolder within the share (e.g. "ots_cms"). Omit to use the share root.</summary>
-    [MaxLength(500)]
-    public string? CifsShareFolder { get; set; }
-
-    [MaxLength(200)]
-    public string? CifsUsername { get; set; }
-
-    [MaxLength(500)]
-    public string? CifsPassword { get; set; }
-
-    [MaxLength(500)]
-    public string? CifsExtraOptions { get; set; }
+    public string? NfsExtraOptions { get; set; }
 }