Add migrations for ParkPhoto and RidePhoto models with associated events

- Created ParkPhoto and ParkPhotoEvent models in the parks app, including fields for image, caption, alt text, and relationships to the Park model.
- Implemented triggers for insert and update operations on ParkPhoto to log changes in ParkPhotoEvent.
- Created RidePhoto and RidePhotoEvent models in the rides app, with similar structure and functionality as ParkPhoto.
- Added fields for photo type in RidePhoto and implemented corresponding triggers for logging changes.
- Established necessary indexes and unique constraints for both models to ensure data integrity and optimize queries.

backend/apps/rides/services/ranking_service.py

@@ -12,7 +12,7 @@ from decimal import Decimal
 from datetime import date
 
 from django.db import transaction
-from django.db.models import Avg, Count, Q, F
+from django.db.models import Avg, Count, Q
 from django.utils import timezone
 
 from apps.rides.models import (