chore: move agents and skills to old2 folder

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

old2/skills/worktrees/scripts/list-worktrees.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+set -euo pipefail
+
+# List all active git worktrees
+#
+# Usage:
+#   ./list-worktrees.sh
+
+REPO_PATH=$(git rev-parse --show-toplevel 2>/dev/null || pwd)
+cd "$REPO_PATH"
+
+echo "Active worktrees:"
+git worktree list