Add secret management guide, client-side performance monitoring, and search accessibility enhancements

- Introduced a comprehensive Secret Management Guide detailing best practices, secret classification, development setup, production management, rotation procedures, and emergency protocols.
- Implemented a client-side performance monitoring script to track various metrics including page load performance, paint metrics, layout shifts, and memory usage.
- Enhanced search accessibility with keyboard navigation support for search results, ensuring compliance with WCAG standards and improving user experience.

backend/apps/api/v1/accounts/views.py

@@ -1302,15 +1302,22 @@ def get_user_statistics(request):
     user = request.user
 
     # Calculate user statistics
-    # TODO(THRILLWIKI-104): Implement full user statistics tracking
+    # See FUTURE_WORK.md - THRILLWIKI-104 for full statistics tracking implementation
     from apps.parks.models import ParkReview
+    from apps.parks.models.media import ParkPhoto
     from apps.rides.models import RideReview
+    from apps.rides.models.media import RidePhoto
+
+    # Count photos uploaded by user
+    park_photos_count = ParkPhoto.objects.filter(uploaded_by=user).count()
+    ride_photos_count = RidePhoto.objects.filter(uploaded_by=user).count()
+    total_photos_uploaded = park_photos_count + ride_photos_count
 
     data = {
         "parks_visited": ParkReview.objects.filter(user=user).values("park").distinct().count(),
         "rides_ridden": RideReview.objects.filter(user=user).values("ride").distinct().count(),
         "reviews_written": ParkReview.objects.filter(user=user).count() + RideReview.objects.filter(user=user).count(),
-        "photos_uploaded": 0,  # TODO(THRILLWIKI-105): Implement photo counting
+        "photos_uploaded": total_photos_uploaded,
         "top_lists_created": TopList.objects.filter(user=user).count(),
         "member_since": user.date_joined,
         "last_activity": user.last_login,