- Implemented Google SSO management in the school settings, allowing schools to configure their own OAuth2 credentials.
- Added fields for Client ID and Client Secret in the edit school modal and school detail page.
- Introduced functionality to save and clear Google SSO settings via API.
- Updated UI to display current SSO status and instructions for setting up Google OAuth2.
- Created a new database migration to add `google_client_id` and `google_client_secret` columns to the schools table.
