add worker scripts to commerce example app

Author: dario-piotrowicz

examples/vercel-commerce/package.json

@@ -11,7 +11,10 @@
     "start": "next start",
     "prettier": "prettier --write --ignore-unknown .",
     "prettier:check": "prettier --check --ignore-unknown .",
-    "test": "pnpm prettier:check"
+    "test": "pnpm prettier:check",
+    "build:worker": "cloudflare",
+    "dev:worker": "wrangler dev --port 8772",
+    "preview:worker": "pnpm build:worker && pnpm dev:worker"
   },
   "dependencies": {
     "@headlessui/react": "^2.1.2",