- Added extensive SDK usage guides for `cliproxy`, `sdk/access`, and watcher integration.
- Introduced `--password` flag for specifying local management access passwords.
- Enhanced management API with local password checks to secure localhost requests.
- Updated documentation to reflect the new password functionality.
- Added `sdk-access.md` and `sdk-access_CN.md` documentation files.
- Included detailed guidelines for authentication manager lifecycle, configuration, built-in and custom providers.
- Documented integration steps with `cliproxy` and instructions for hot reloading.
