#!/bin/bash
set -euo pipefail
ROOT="${1:-$PWD}"
echo "🔩 Fixing shebangs & +x under $ROOT ..."
find "$ROOT" -type f -name "*.sh" -print0 | while IFS= read -r -d '' f; do
  if ! head -1 "$f" | grep -q "#!"; then
    (printf "#!/bin/bash\n"; cat "$f") > "$f.tmp" && mv "$f.tmp" "$f"
  fi
  chmod +x "$f" || true
done
echo "✅ Permissions & shebangs normalized."