Commit remaining unstaged changes from this session

- Platform settings service: IPlatformSettingsService, PlatformSettingKeys,
  PlatformSettingsService, SubscriptionService, AppConstants,
  SubscriptionExpiryBackgroundService, SubscriptionMiddleware
- JobTimeEntry entity, DTOs, AutoMapper profile (ShopWorker → UserId migration)
- InventoryDtos: SourceTransactionId on PowderUsageLogDto
- InventoryTransactionRepository: include Job.Customer in ledger query
- InventoryAiLookupService: @graph unwrap + HTML price fallback
- ApplicationDbContextModelSnapshot: reflect migration changes
- launchSettings.json, publish profile

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/PowderCoating.Application/DTOs/Job/JobDtos.cs

@@ -404,9 +404,8 @@ public class JobTimeEntryDto
 {
     public int Id { get; set; }
     public int JobId { get; set; }
-    public int ShopWorkerId { get; set; }
+    public string? UserId { get; set; }
     public string WorkerName { get; set; } = string.Empty;
-    public string WorkerRole { get; set; } = string.Empty;
     public DateTime WorkDate { get; set; }
     public decimal HoursWorked { get; set; }
     public string? Stage { get; set; }
@@ -417,7 +416,7 @@ public class JobTimeEntryDto
 public class CreateJobTimeEntryDto
 {
     public int JobId { get; set; }
-    public int ShopWorkerId { get; set; }
+    public string UserId { get; set; } = string.Empty;
     public DateTime WorkDate { get; set; }
     public decimal HoursWorked { get; set; }
     public string? Stage { get; set; }
@@ -427,7 +426,7 @@ public class CreateJobTimeEntryDto
 public class UpdateJobTimeEntryDto
 {
     public int Id { get; set; }
-    public int ShopWorkerId { get; set; }
+    public string UserId { get; set; } = string.Empty;
     public DateTime WorkDate { get; set; }
     public decimal HoursWorked { get; set; }
     public string? Stage { get; set; }