add production start script

package.json

@@ -7,7 +7,8 @@
     "dev": "vite --host 0.0.0.0",
     "dev:api": "node server/server.js",
     "build": "vite build",
-    "preview": "vite preview --host 0.0.0.0"
+    "preview": "vite preview --host 0.0.0.0",
+    "start": "node server/server.js"
   },
   "dependencies": {
     "@vitejs/plugin-vue": "latest",