familiar is issuer-agnostic (resource server only), so Gitea can back
oauth mode with config alone: RS256 JWTs, JWKS at /login/oauth/keys, and
OIDC discovery. Add a deployment.md section covering the env config, the
aud=client-ID audience pitfall, and the no-DCR caveat; add a Gitea block
to .env.example; and note in claude-web.md that Gitea can't back the
claude.ai web connector (which requires DCR).