- Add LetzshopVendorCache model to store cached vendor data from Letzshop API
- Create LetzshopVendorSyncService for syncing vendor directory
- Add Celery task for background vendor sync
- Create admin page at /admin/letzshop/vendor-directory with:
- Stats dashboard (total, claimed, unclaimed vendors)
- Searchable/filterable vendor list
- "Sync Now" button to trigger sync
- Ability to create platform vendors from Letzshop cache
- Add API endpoints for vendor directory management
- Add Pydantic schemas for API responses
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>