Two separate reviews of the SSO branch and all 207 API routes (spec 12 §8.6). Every route was guarded as meant. Fixed, each with a test: - login: a directory 503 counts as a failed sign-in; a locked directory account is a refused password, not "unavailable" - open redirect after OpenID sign-in (a tab in next) - directory email matching only for non-admins without their own password; others connect on My settings (POST /api/me/identities/ldap); only admins disconnect a directory account - OpenID session check reads the refreshed ID token's claims too - connect is POST /api/auth/oidc/connect (CSRF header) - stored bind password, client secret and SMTP password tied to their server - 409 role_managed when a provider sets the role; empty Contrack PATCH is a 400 - @fastify/rate-limit on every route (RATE_LIMIT_PER_MINUTE), 10/min on Test buttons; a password asked again shares the login limiter Live tests pass against lldap 0.6.3, Samba 4 AD and Keycloak 26.8.1.