Previously logout only destroyed our own session -- someone who
signed in via Authentik stayed logged into Authentik itself, so
"Sign in with Authentik" again would silently re-authenticate with
no prompt.
Session now tracks authMethod ("local" | "oidc") and, for OIDC
sessions, the raw id_token (needed as id_token_hint at logout time).
New GET /api/auth/oidc/logout redirects through Authentik's
end_session_endpoint (openid-client's buildEndSessionUrl, not
hand-rolled) before landing back on /. Must be a full-page navigation
-- Authentik needs a real browser request to clear its own session
cookie, a fetch() wouldn't do that. Local sessions still use the
existing POST /api/auth/logout unchanged.
Confirmed Authentik has no dedicated post_logout_redirect_uri
allowlist field by checking the provider's DB schema directly before
implementing, rather than assuming.
Closes#19.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
jhodgkin
74c7bf6ef7