docs: add Supabase to Django endpoint mapping documentation

docs/ENDPOINT_MAPPING.md

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+# Supabase → Django Endpoint Mapping
+
+## Overview
+This document maps all Supabase endpoints to their Django REST Framework equivalents.
+
+---
+
+## Edge Function Mappings
+
+### Images
+| Supabase Function | Django Endpoint | Method | Status |
+|-------------------|-----------------|--------|--------|
+| `upload-image` | `/api/v1/images/generate-upload-url/` | POST | ✅ |
+| `delete-image` | `/api/v1/images/delete/` | POST | ✅ |
+| `generate-og-image` | `/api/v1/images/og-image/` | POST | ✅ |
+
+### Location/Maps
+| Supabase Function | Django Endpoint | Method | Status |
+|-------------------|-----------------|--------|--------|
+| `detect-location` | `/api/v1/maps/detect-location/` | POST | ✅ |
+| `enrich-location` | `/api/v1/maps/enrich-location/` | POST | ✅ |
+| `search-location` | `/api/v1/maps/search-location/` | POST | ✅ |
+
+### Notifications (Django Native)
+| Supabase Function | Django Endpoint | Method | Status |
+|-------------------|-----------------|--------|--------|
+| `get-notifications` | `/api/v1/notifications/` | GET | ✅ |
+| `mark-notification-read` | `/api/v1/notifications/mark-read/` | POST | ✅ |
+| `get-unread-count` | `/api/v1/notifications/unread-count/` | GET | ✅ |
+
+### Moderation
+| Supabase Function | Django Endpoint | Method | Status |
+|-------------------|-----------------|--------|--------|
+| `process-bulk-approval` | `/api/v1/moderation/api/bulk-operations/` | POST | ✅ |
+| `claim-submission` | `/api/v1/moderation/api/queue/` | POST | ✅ |
+| `convert-submission-to-edit` | `/api/v1/moderation/api/edit-submissions/` | POST | ✅ |
+
+### Auth/MFA
+| Supabase Function | Django Endpoint | Method | Status |
+|-------------------|-----------------|--------|--------|
+| `mfa-unenroll` | `/api/v1/auth/mfa/totp/deactivate/` | POST | ✅ |
+| `process-oauth-profile` | `/api/v1/auth/social/process-profile/` | POST | ✅ |
+
+### Account Management
+| Supabase Function | Django Endpoint | Method | Status |
+|-------------------|-----------------|--------|--------|
+| `cancel-account-deletion` | `/api/v1/accounts/delete-account/cancel/` | POST | ✅ |
+| `confirm-account-deletion` | `/api/v1/accounts/delete-account/verify/` | POST | ✅ |
+| `cancel-email-change` | `/api/v1/accounts/email-change/cancel/` | POST | ✅ |
+| `export-user-data` | `/api/v1/accounts/data-export/` | POST | ✅ |
+
+### Admin Dashboard
+| Supabase Function | Django Endpoint | Method | Status |
+|-------------------|-----------------|--------|--------|
+| `detect-anomalies` | `/api/v1/admin/anomalies/detect/` | POST | ✅ |
+| `collect-metrics` | `/api/v1/admin/metrics/collect/` | POST | ✅ |
+| `pipeline-integrity-scan` | `/api/v1/admin/pipeline/integrity-scan/` | POST | ✅ |
+| `task-status` | `/api/v1/admin/tasks/status/` | GET | ✅ |
+
+---
+
+## Table Mappings
+
+| Supabase Table | Django Endpoint |
+|----------------|-----------------|
+| `parks` | `/api/v1/parks/` |
+| `rides` | `/api/v1/rides/` |
+| `companies` | `/api/v1/companies/` |
+| `ride_models` | `/api/v1/rides/models/` |
+| `profiles` | `/api/v1/accounts/profiles/` |
+| `reviews` | `/api/v1/reviews/` |
+| `photos` | `/api/v1/media/photos/` |
+| `content_submissions` | `/api/v1/moderation/submissions/` |
+| `ride_credits` | `/api/v1/accounts/credits/` |
+
+---
+
+## Scheduled Tasks (Celery)
+
+| Supabase Function | Celery Task |
+|-------------------|-------------|
+| `process-scheduled-deletions` | `apps.core.tasks.scheduled` |
+| `process-closing-entities` | `apps.core.tasks.scheduled` |
+| `cleanup-orphaned-images` | `apps.core.tasks.scheduled` |
+
+---
+
+## Deprecated
+
+| Function | Status |
+|----------|--------|
+| `migrate-novu-users` | 🚫 Replaced by Django native |
+| `novu-webhook` | 🚫 Replaced by Django native |