update vite plugin to preserve special file

ui/package.json

@@ -50,6 +50,7 @@
     "zod": "^3.23.8"
   },
   "devDependencies": {
+    "@types/fs-extra": "^11.0.4",
     "@types/node": "^22.0.0",
     "@types/react": "^18.3.3",
     "@types/react-dom": "^18.3.0",
@@ -62,6 +63,7 @@
     "eslint-plugin-prettier": "^5.2.1",
     "eslint-plugin-react-hooks": "^4.6.2",
     "eslint-plugin-react-refresh": "^0.4.7",
+    "fs-extra": "^11.2.0",
     "postcss": "^8.4.40",
     "prettier": "^3.3.3",
     "tailwindcss": "^3.4.7",