- Split compound "Profile" column into separate Profile ID and Name columns
- Replace "Endpoint" column with "Storage Path" showing bucket/prefix or folder info
- Add GDrive quota display (capacity/used) via new backend API endpoint
- Add video count statistics per storage type via new backend API endpoint
- Add inline test button per profile with 15s timeout and per-profile loading state
- Backend: GetQuotaInfo, CountByStorageType, GetGDriveQuota, GetStorageVideoStats
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>