feat: Implement avatar upload system with Cloudflare integration

- Added migration to transition avatar data from CloudflareImageField to ForeignKey structure in UserProfile.
- Fixed UserProfileEvent avatar field to align with new avatar structure.
- Created serializers for social authentication, including connected and available providers.
- Developed request logging middleware for comprehensive request/response logging.
- Updated moderation and parks migrations to remove outdated triggers and adjust foreign key relationships.
- Enhanced rides migrations to ensure proper handling of image uploads and triggers.
- Introduced a test script for the 3-step avatar upload process, ensuring functionality with Cloudflare.
- Documented the fix for avatar upload issues, detailing root cause, implementation, and verification steps.
- Implemented automatic deletion of Cloudflare images upon avatar, park, and ride photo changes or removals.

backend/apps/rides/views.py

@@ -3,7 +3,6 @@ from django.shortcuts import get_object_or_404, render
 from django.urls import reverse
 from django.db.models import Q
 from django.contrib.auth.mixins import LoginRequiredMixin
-from django.contrib.contenttypes.models import ContentType
 from django.http import HttpRequest, HttpResponse, Http404
 from django.db.models import Count
 from .models.rides import Ride, RideModel, Categories
@@ -13,7 +12,6 @@ from .forms.search import MasterFilterForm
 from .services.search import RideSearchService
 from apps.parks.models import Park
 from apps.moderation.mixins import EditSubmissionMixin, HistoryMixin
-from apps.moderation.models import EditSubmission
 from apps.moderation.services import ModerationService
 from .models.rankings import RideRanking, RankingSnapshot
 from .services.ranking_service import RideRankingService