{"success":true,"message":"Gallery Wall Backend API","version":"1.0.0","endpoints":{"webhook":{"booth_events":"POST /webhook/booth-events","test":"POST /webhook/test"},"api":{"all_media":"GET /api/media","latest_media":"GET /api/media/latest?since=timestamp","single_media":"GET /api/media/:id","stats":"GET /api/stats","health":"GET /api/health","capabilities":"GET /api/capabilities","storage_audit":"GET /api/storage/audit","storage_cleanup_missing":"DELETE /api/storage/display-media/missing","display_media":"GET /api/display-media","upload_display_media":"POST /api/display-media","update_display_media":"PATCH /api/display-media/:id","delete_display_media":"DELETE /api/display-media/:id"}}}