fix: wave 5b review blockers - suppressed memory key, finalizer merge, zero-image guard

tests/review/test_finalizer.py

@@ -85,6 +85,29 @@ def test_finalize_confirm_keeps_confirmed(monkeypatch, tmp_path):
     assert report["summary"]["agent_status"] == "complete"
 
 
+def test_finalize_preserves_verifier_suppressed(monkeypatch, tmp_path):
+    """Wave-5b (verifier) suppressions must survive review finalization and
+    merge with review-rejected suppressions."""
+    monkeypatch.setattr("backend.review.finalizer._draft_rfis", lambda kept: [])
+    _write_job(
+        str(tmp_path),
+        prioritized=[{"issue_id": "AGENT-0001", "severity": "high"}],
+        queue=[_blocking_item("AGENT-0001")],
+        decisions=[{"review_item_id": "finding:AGENT-0001",
+                    "decision": "reject", "reason_code": "not_a_contradiction"}],
+    )
+    path = os.path.join(str(tmp_path), "conflicts.json")
+    with open(path, encoding="utf-8") as f:
+        report = json.load(f)
+    report["suppressed_issues"] = [
+        {"issue_id": "C1", "verification": {"status": "refuted"}}]
+    with open(path, "w", encoding="utf-8") as f:
+        json.dump(report, f)
+    final = finalize_review("job1", str(tmp_path))
+    ids = [f["issue_id"] for f in final["suppressed_issues"]]
+    assert ids == ["C1", "AGENT-0001"]
+
+
 def test_finalize_no_decision_keeps_unreviewed(monkeypatch, tmp_path):
     """Non-blocking (audit) items don't need a decision; issue stays unreviewed."""
     monkeypatch.setattr("backend.review.finalizer._draft_rfis", lambda kept: [])