- Updated the SigningConfig, TokenConfig, SecurityConfig, and ClientConfig structures to include optional default values for various fields, improving clarity and usability.
- Added comments to specify default values and optionality for each configuration parameter, enhancing documentation within the code.
- This change aims to streamline the configuration process for OAuth service implementations.
- Added dynamic client registration support in the OAuth service, implementing RFC 7591 for automatic client registration.
- Introduced methods for generating client IDs and secrets, validating registration requests, and creating client information.
- Enhanced authorization flow by validating client requests, redirect URIs, and response types.
- Implemented token management features, including token introspection, token exchange, and refresh token handling.
- Improved security with state parameter generation and validation, as well as code challenge methods for PKCE.
- Updated endpoint discovery and server metadata retrieval to include new features and capabilities.
- Introduced a new user model `yao/models/user.mod.yao` to support user management functionalities.
- Updated the OAuth service to utilize the new `DefaultUser` provider, enhancing user authentication and management capabilities.
- Refactored user retrieval methods to align with the new user model structure, ensuring compatibility and improved functionality.
- Added token management methods to the user provider interface, streamlining token handling processes.
- Enhanced test utilities to include the new user model for comprehensive testing coverage.
- Deleted the OAuth interface and related types that were previously defined in the `interfaces.go` and `types.go` files, streamlining the codebase.
- Updated the `oauth.go` file to integrate user and client providers directly, enhancing the service's functionality and reducing complexity.
- Refactored the user information retrieval method to utilize the new user provider structure, ensuring compatibility with the updated architecture.
