Lazycat Auth Integration

This handles auth integration for Lazycat MicroServer, a Chinese platform that wraps apps with OIDC single sign-on and injects user identity via HTTP headers. You configure it through a manifest file where you specify your OIDC callback path and which routes should be public. The platform automatically adds headers like X-HC-User-ID and X-HC-User-Role to authenticated requests, so your backend can trust them without additional verification. It also covers API tokens for scripted access when you can't rely on browser cookies. Useful if you're deploying on this specific infrastructure and need to wire up their auth system without building your own login flow.