Map uncaught HTTPError from LLDAP login to a structured
dependency_unavailable response, add /readyz as the provisioner-to-directory
preflight, keep /healthz as process liveness, and run the contract in CI.
Auth rejection is not retried during cooldown.
NK-WP-0036-T05 remains in progress until the immutable image is published,
pinned with /readyz, and one native login/create/password-setup journey is
verified.
Assistant: grok
Assistant-Session: 01a09dc6-3f0e-78f1-a884-c8c703c24ddf
