- Introduced `CLAUDE.md` to provide detailed project documentation, including architecture, configuration, and implementation details.
- Added build and testing instructions, focusing on `cargo` commands and `cargo-nextest` for improved testing workflow.
- Described application modules (`settings`, `storage`, `jwks`, `web`) and key features like PKCE, WebAuthn, and 2FA.
- Covered OpenID Connect, OAuth 2.0 endpoints, and claims handling (AMR/ACR).
- Documented admin API, WebAuthn client setup, OIDC conformance, and migration steps for existing deployments.
