Prepare two real-FSVI RED/GREEN cases: a short first window hiding later messages and a filled multi-shard page with the wrong second result. Require the parent to fail at the intended completeness assertions, then require all 43 component tests to pass after the narrow production patch before source publication.
Use the retained exact readers, unchanged engine pin and same temporary dependency lock. No full-CASS qualification is claimed; no archive or dependency manifests are modified.