fix: resolve conflicts for PR #486

Merge prgs/master into PR branch to restore mergeability.

Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>

review_proofs.py

@@ -5629,3 +5629,12 @@ def assess_proof_backed_handoff_report(report_text, **kwargs):
     from reviewer_proof_backed_handoff import assess_proof_backed_handoff_report as _assess
 
     return _assess(report_text, **kwargs)
+
+
+def assess_mutation_capability_proof(report_text, **kwargs):
+    """#405: exact per-mutation capability proof in reviewer final reports."""
+    from reviewer_mutation_capability_proof import (
+        assess_mutation_capability_proof as _assess,
+    )
+
+    return _assess(report_text, **kwargs)