fix: harden review and verifier governance

scripts/git_commit_status_report.sh

@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+LABEL="${1:-worktree}"
+STATUS_OUTPUT="$(git status --short 2>/dev/null || true)"
+BLOCKER_THRESHOLD="${WORKTREE_BLOCKER_THRESHOLD:-50}"
+
+if [[ -z "$STATUS_OUTPUT" ]]; then
+  echo "WORKTREE_STATUS label=${LABEL} state=clean tracked_modified=0 untracked=0 total=0 commit_hint=none severity=normal"
+  exit 0
+fi
+
+TRACKED_MODIFIED=$(printf '%s\n' "$STATUS_OUTPUT" | awk 'NF && $1 !~ /^\?\?/ { count++ } END { print count+0 }')
+UNTRACKED=$(printf '%s\n' "$STATUS_OUTPUT" | awk '$1 ~ /^\?\?/ { count++ } END { print count+0 }')
+TOTAL=$((TRACKED_MODIFIED + UNTRACKED))
+SEVERITY="warning"
+if [[ "$TOTAL" -gt "$BLOCKER_THRESHOLD" ]]; then
+  SEVERITY="blocker"
+fi
+
+echo "WORKTREE_STATUS label=${LABEL} state=dirty tracked_modified=${TRACKED_MODIFIED} untracked=${UNTRACKED} total=${TOTAL} commit_hint=needed severity=${SEVERITY}"