feat: add ClawHub/OpenClaw publishing support

scripts/sync-clawhub.sh

@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+SKILLS_DIR="${ROOT_DIR}/skills"
+
+if command -v clawhub >/dev/null 2>&1; then
+  CLAWHUB_CMD=(clawhub)
+elif command -v npx >/dev/null 2>&1; then
+  CLAWHUB_CMD=(npx -y clawhub)
+else
+  echo "Error: neither clawhub nor npx is available."
+  echo "See https://docs.openclaw.ai/zh-CN/tools/clawhub"
+  exit 1
+fi
+
+if [ "$#" -eq 0 ]; then
+  set -- --all
+fi
+
+exec "${CLAWHUB_CMD[@]}" sync --root "${SKILLS_DIR}" "$@"