- Added OAuth 2.0 authentication with auto-refresh tokens
- OAuth tokens refresh automatically on pod startup (works like DropSend Node)
- Service Account method now clearly marked as Google Workspace only
- Updated README with clear auth requirements
- Added wait_for_complete_write() for reliable file uploads
- Removed broken ownership transfer code
- Default auth method changed to OAuth
- Better error messages for quota and auth issues
MachinePainting