fix(rectification): close round A/2 tail gaps in tests, CI, and stale-score reuse

Window_scan assertions now match the public from_sign/to_sign contract, the
staging quick gate runs the rectification Python suite, and compare-candidates
rescores when stored policy lags the live engine identity.

Co-authored-by: Cursor <cursoragent@cursor.com>

scripts/run_quality_gate.py

@@ -59,6 +59,10 @@ CORE_PYTEST_TARGETS = [
     # Staging quick profile never runs `tests/` wholesale. A distinguish probe
     # with empty mapping or non-positive gain must fail this gate (BUG-393).
     "tests/test_candidate_discriminator_contract.py",
+    # Auto staging gate is `--profile quick`. `test.yml` / `ci.yml` run the
+    # full pytest tree but are workflow_dispatch only, so a stale window_scan
+    # assertion in this glob stayed red on origin/staging until listed here.
+    "tests/test_rectification_*.py",
 ]
 
 RUNTIME_TRUTH_PYTEST_TARGETS = [