fix: harden review and verifier governance

scripts/pipeline_script_includes_signature_query_test.sh

@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+cd "$ROOT_DIR"
+
+python3 - <<'PY'
+from pathlib import Path
+import re
+
+files = [
+    'scripts/run_real_pipeline.sh',
+    'scripts/run_daily.sh',
+    'scripts/run_intel_pipeline.sh',
+    'scripts/run_intraday_price_watch.sh',
+    'scripts/run_intraday_discovery_watch.sh',
+]
+pattern = re.compile(r'materialize_daily_signals\.go.*official_import_signature_audit_query_lib\.go|official_import_signature_audit_query_lib\.go.*materialize_daily_signals\.go', re.S)
+missing = [path for path in files if not pattern.search(Path(path).read_text())]
+if missing:
+    raise SystemExit('missing helper include: ' + ', '.join(missing))
+PY