feat: Implement MFA authentication, add ride statistics model, and update various services, APIs, and tests across the application.

backend/apps/parks/selectors.py

@@ -3,16 +3,18 @@ Selectors for park-related data retrieval.
 Following Django styleguide pattern for separating data access from business logic.
 """
 
-from typing import Optional, Dict, Any
-from django.db.models import QuerySet, Q, Count, Avg, Prefetch
+from typing import Any
+
 from django.contrib.gis.geos import Point
 from django.contrib.gis.measure import Distance
+from django.db.models import Avg, Count, Prefetch, Q, QuerySet
 
-from .models import Park, ParkArea, ParkReview
 from apps.rides.models import Ride
 
+from .models import Park, ParkArea, ParkReview
 
-def park_list_with_stats(*, filters: Optional[Dict[str, Any]] = None) -> QuerySet[Park]:
+
+def park_list_with_stats(*, filters: dict[str, Any] | None = None) -> QuerySet[Park]:
     """
     Get parks optimized for list display with basic stats.
 
@@ -116,7 +118,7 @@ def parks_near_location(
     )
 
 
-def park_statistics() -> Dict[str, Any]:
+def park_statistics() -> dict[str, Any]:
     """
     Get overall park statistics for dashboard/analytics.
 
@@ -167,9 +169,10 @@ def parks_with_recent_reviews(*, days: int = 30) -> QuerySet[Park]:
     Returns:
         QuerySet of parks with recent reviews
     """
-    from django.utils import timezone
     from datetime import timedelta
 
+    from django.utils import timezone
+
     cutoff_date = timezone.now() - timedelta(days=days)
 
     return (