Lifted:
- test_instantiation_not_mock_away: tests must exercise actual instantiation,
not mock away the constructor (caught the MiniMax 401 regression)
- preserve_prior_versions_of_review_docs: when iterating on a review,
preserve prior versions as separate files (v2/v2.1/v2.2/v2.3)
- neutral_language_for_doc_drift: doc-drift fixes use 'predates/stale/
outdated', not 'fictional' (value judgment, not technical description)
- preserve_before_compact_archive: at 80%+ context, write a comprehensive
session-synthesis archive before compaction
- user_corrections_log_in_state_toml: per-track state.toml has a
user_corrections_log section for any reviewed-by-user track
- surface_dirty_state_in_test_runner: when subprocess is dead/degraded,
print a clear [BATCH-WARN] rather than silent timeout
