fix: harden review and verifier governance

scripts/review/root_cause_summary_test.sh

@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
+cd "$ROOT_DIR"
+
+TMP_DIR="$(mktemp -d)"
+trap 'rm -rf "$TMP_DIR"' EXIT
+
+BAD_FILE="$TMP_DIR/bad-phase6.txt"
+cat > "$BAD_FILE" <<'EOF'
+[FAIL] importer_smoke_gate_result=FAIL 新增导入器 smoke gate 未通过
+[FAIL] live_run_result=FAIL 主链路真实采集失败
+SUMMARY pass=10 fail=2 warn=0
+PHASE_RESULT: FAIL
+EOF
+
+set +e
+bash scripts/review/root_cause_summary_guard.sh "$BAD_FILE" >/tmp/root_cause_bad.out 2>&1
+BAD_RC=$?
+set -e
+[[ "$BAD_RC" -ne 0 ]]
+grep -q 'missing root cause summary' /tmp/root_cause_bad.out
+
+GOOD_FILE="$TMP_DIR/good-phase6.txt"
+cat > "$GOOD_FILE" <<'EOF'
+[FAIL] importer_smoke_gate_result=FAIL 新增导入器 smoke gate 未通过
+ROOT_CAUSE class=importer_smoke_gate_failure source=importer_smoke_gate summary=新增导入器 smoke gate 未通过
+SUMMARY pass=10 fail=1 warn=0
+PHASE_RESULT: FAIL
+EOF
+
+bash scripts/review/root_cause_summary_guard.sh "$GOOD_FILE" >/tmp/root_cause_good.out 2>&1
+grep -q 'ROOT_CAUSE_GUARD: PASS' /tmp/root_cause_good.out