E2E pytest canaries proving the server confirms a healthy app healthy
(semantic per-tier assertions, not just exit codes) AND catches a broken
one (false-green guard). Good canaries: custom-html-tiny + lasuite-docs;
known-bad fixture must report RED. Queued as the loops' next phase after
mirror-enroll.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
