Align review status and follow-up context

[Pimpmuckl]

Summary

• make branch status use persisted decision metadata only and expose neutral clean/findings choices when classification is still required
• mirror brief-backed contract-conflict guidance in fix-pending status output
• pass the frozen review brief and non-blocking-suggestions instruction to follow-up correctness reviews

Stack

Base: stack/wr-dqwcom36/12-dogfood-feedback. This is the downstream status/follow-up parity slice split from PR #56.

Validation

• focused owner suites: 99 passed
• full plugin suite: 653 passed
• Ruff format/check: clean across 51 files
• diff check: clean
• Review Suite fast rvw_1e84a90e: both correctness reviewers clean; exact-head closure CONFORMS / clean; ladder complete