Add ReviewEvent model and ReviewSubmissionService for review management

- Created a new ReviewEvent model to track review events with fields for content, rating, moderation status, and timestamps.
- Added ForeignKey relationships to connect ReviewEvent with ContentSubmission, User, and Review.
- Implemented ReviewSubmissionService to handle review submissions, including creation, updates, and moderation workflows.
- Introduced atomic transactions to ensure data integrity during review submissions and updates.
- Added logging for review submission and moderation actions for better traceability.
- Implemented validation to prevent duplicate reviews and ensure only the review owner can update their review.

django/apps/entities/tasks.py

@@ -152,7 +152,6 @@ def generate_entity_report(entity_type, entity_id):
     from apps.entities.models import Park, Ride, Company, RideModel
     from apps.media.models import Photo
     from apps.moderation.models import ContentSubmission
-    from apps.versioning.models import EntityVersion
     
     try:
         model_map = {
@@ -206,10 +205,8 @@ def generate_entity_report(entity_type, entity_id):
                     status='pending'
                 ).count(),
             },
-            'versions': EntityVersion.objects.filter(
-                content_type__model=entity_type.lower(),
-                object_id=entity_id
-            ).count(),
+            # Version history now tracked via pghistory Event models
+            # Can query {ModelName}Event if needed (e.g., ParkEvent, RideEvent)
         }
         
         logger.info(f"Generated report for {entity_type} {entity_id}")