- Introduce `YaoAuthSource` and `OAuthEmail` fields in various structures to capture authentication source and OAuth email during user login and registration processes.
- Update `SignIDToken`, `GetInfo`, and `Map` functions to include new claims for Yao authentication source.
- Modify login context to preserve authentication source and OAuth email across different user flows.
- Enhance token issuance to include authentication source and OAuth email in claims for better tracking and user context.
- Ensure proper handling of OAuth email for third-party logins without affecting user profile email.
This change improves the user experience by providing clearer context on authentication methods used during login and registration processes.
