Add multi-image support for task completions and documents

- Add TaskCompletionImage and DocumentImage models with one-to-many relationships
- Update admin panel to display images for completions and documents
- Add image arrays to API request/response DTOs
- Update repositories with Preload("Images") for eager loading
- Fix seed SQL execution to use raw SQL instead of prepared statements
- Fix table names in seed file (admin_users, push_notifications_*)
- Add comprehensive seed test data with 34 completion images and 24 document images
- Add subscription limitations admin feature with toggle
- Update admin sidebar with limitations link

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

internal/services/task_service.go

@@ -475,14 +475,27 @@ func (s *TaskService) CreateCompletion(req *requests.CreateTaskCompletionRequest
 		CompletedAt:   completedAt,
 		Notes:         req.Notes,
 		ActualCost:    req.ActualCost,
-		PhotoURL:      req.PhotoURL,
+		Rating:        req.Rating,
 	}
 
 	if err := s.taskRepo.CreateCompletion(completion); err != nil {
 		return nil, err
 	}
 
-	// Reload completion with user info
+	// Create images if provided
+	for _, imageURL := range req.ImageURLs {
+		if imageURL != "" {
+			img := &models.TaskCompletionImage{
+				CompletionID: completion.ID,
+				ImageURL:     imageURL,
+			}
+			if err := s.taskRepo.CreateCompletionImage(img); err != nil {
+				log.Error().Err(err).Uint("completion_id", completion.ID).Msg("Failed to create completion image")
+			}
+		}
+	}
+
+	// Reload completion with user info and images
 	completion, err = s.taskRepo.FindCompletionByID(completion.ID)
 	if err != nil {
 		return nil, err