refactor: migrate to pnpm monorepo with Payload CMS backend and Astro frontend to support scalable website development and AI-assisted workflows

apps/frontend/package.json

@@ -0,0 +1,23 @@
+{
+  "name": "@enchun/frontend",
+  "version": "0.1.0",
+  "private": true,
+  "type": "module",
+  "scripts": {
+    "dev": "astro dev",
+    "build": "astro build",
+    "preview": "astro preview",
+    "check": "astro check"
+  },
+  "dependencies": {
+    "@astrojs/cloudflare": "^9.0.0",
+    "@astrojs/tailwind": "^5.0.0",
+    "astro": "^4.0.0",
+    "better-auth": "^1.3.13"
+  },
+  "devDependencies": {
+    "autoprefixer": "^10.4.0",
+    "tailwindcss": "^3.4.0",
+    "typescript": "^5.4.0"
+  }
+}