* feat: Add support for users to be admins when logging in using OpenID
* fix: Linting issues
* fix: whitespace
* chore: add unit tests for OIDC_ADMIN_ROLE
* refactor: Replace custom property retrieval function with lodash's get for improved readability and maintainability
* feat: Enhance OpenID role extraction and error handling in setupOpenId function
- Improved role validation to check for both array and string types.
- Added detailed error messages for missing or invalid role paths in tokens.
- Expanded unit tests to cover various scenarios for nested role extraction and error handling.
* fix: Improve error handling for role extraction in OpenID strategy
- Enhanced validation to check for invalid role types (array or string).
- Updated error messages for clarity when roles are missing or of incorrect type.
- Added unit tests to cover scenarios where roles return invalid types (object, number).
* feat: Implement user role demotion in OpenID strategy when admin role is absent from token
- Added logic to demote users from 'ADMIN' to 'USER' if the admin role is not present in the token.
- Enhanced logging to capture role changes for better traceability.
- Introduced unit tests to verify the demotion behavior and ensure correct handling when admin role environment variables are not configured.
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Co-authored-by: Danny Avila <danny@librechat.ai>