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- Updated moderation and parks migrations to remove outdated triggers and adjust foreign key relationships.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/moderation/migrations/0005_remove_photosubmission_insert_insert_and_more.py

@@ -0,0 +1,75 @@
+# Generated by Django 5.2.5 on 2025-08-30 21:41
+
+import django.db.models.deletion
+import pgtrigger.compiler
+import pgtrigger.migrations
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("django_cloudflareimages_toolkit", "0001_initial"),
+        ("moderation", "0004_alter_moderationqueue_options_and_more"),
+    ]
+
+    operations = [
+        pgtrigger.migrations.RemoveTrigger(
+            model_name="photosubmission",
+            name="insert_insert",
+        ),
+        pgtrigger.migrations.RemoveTrigger(
+            model_name="photosubmission",
+            name="update_update",
+        ),
+        migrations.AlterField(
+            model_name="photosubmission",
+            name="photo",
+            field=models.ForeignKey(
+                help_text="Photo submission stored on Cloudflare Images",
+                on_delete=django.db.models.deletion.CASCADE,
+                to="django_cloudflareimages_toolkit.cloudflareimage",
+            ),
+        ),
+        migrations.AlterField(
+            model_name="photosubmissionevent",
+            name="photo",
+            field=models.ForeignKey(
+                db_constraint=False,
+                help_text="Photo submission stored on Cloudflare Images",
+                on_delete=django.db.models.deletion.DO_NOTHING,
+                related_name="+",
+                related_query_name="+",
+                to="django_cloudflareimages_toolkit.cloudflareimage",
+            ),
+        ),
+        pgtrigger.migrations.AddTrigger(
+            model_name="photosubmission",
+            trigger=pgtrigger.compiler.Trigger(
+                name="insert_insert",
+                sql=pgtrigger.compiler.UpsertTriggerSql(
+                    func='INSERT INTO "moderation_photosubmissionevent" ("caption", "content_type_id", "created_at", "date_taken", "handled_at", "handled_by_id", "id", "notes", "object_id", "pgh_context_id", "pgh_created_at", "pgh_label", "pgh_obj_id", "photo_id", "status", "updated_at", "user_id") VALUES (NEW."caption", NEW."content_type_id", NEW."created_at", NEW."date_taken", NEW."handled_at", NEW."handled_by_id", NEW."id", NEW."notes", NEW."object_id", _pgh_attach_context(), NOW(), \'insert\', NEW."id", NEW."photo_id", NEW."status", NEW."updated_at", NEW."user_id"); RETURN NULL;',
+                    hash="198c1500ffe6dd50f9fc4bc7bbfbc1c392f1faa6",
+                    operation="INSERT",
+                    pgid="pgtrigger_insert_insert_62865",
+                    table="moderation_photosubmission",
+                    when="AFTER",
+                ),
+            ),
+        ),
+        pgtrigger.migrations.AddTrigger(
+            model_name="photosubmission",
+            trigger=pgtrigger.compiler.Trigger(
+                name="update_update",
+                sql=pgtrigger.compiler.UpsertTriggerSql(
+                    condition="WHEN (OLD.* IS DISTINCT FROM NEW.*)",
+                    func='INSERT INTO "moderation_photosubmissionevent" ("caption", "content_type_id", "created_at", "date_taken", "handled_at", "handled_by_id", "id", "notes", "object_id", "pgh_context_id", "pgh_created_at", "pgh_label", "pgh_obj_id", "photo_id", "status", "updated_at", "user_id") VALUES (NEW."caption", NEW."content_type_id", NEW."created_at", NEW."date_taken", NEW."handled_at", NEW."handled_by_id", NEW."id", NEW."notes", NEW."object_id", _pgh_attach_context(), NOW(), \'update\', NEW."id", NEW."photo_id", NEW."status", NEW."updated_at", NEW."user_id"); RETURN NULL;',
+                    hash="4757ec44aa21ca0567f894df0c2a5db7d39ec98f",
+                    operation="UPDATE",
+                    pgid="pgtrigger_update_update_9c311",
+                    table="moderation_photosubmission",
+                    when="AFTER",
+                ),
+            ),
+        ),
+    ]