feat: new frontend demo

apps/new-frontend/package.json

@@ -6,7 +6,12 @@
   "scripts": {
     "dev": "vite",
     "build": "vue-tsc -b && vite build",
-    "preview": "vite preview"
+    "preview": "vite preview",
+    "typecheck": "vue-tsc -b",
+    "lint": "eslint . --fix",
+    "lint:check": "eslint .",
+    "format": "prettier --write .",
+    "format:check": "prettier --check ."
   },
   "dependencies": {
     "@tailwindcss/vite": "^4.2.4",
@@ -18,12 +23,19 @@
     "vue": "^3.5.33"
   },
   "devDependencies": {
+    "@eslint/js": "^9.39.2",
     "@types/node": "^25.6.0",
+    "@typescript-eslint/parser": "^8.59.1",
     "@vitejs/plugin-vue": "^6.0.6",
+    "@vue/eslint-config-prettier": "^10.2.0",
     "@vue/tsconfig": "^0.9.1",
+    "eslint": "^9.39.2",
+    "eslint-plugin-vue": "^10.7.0",
+    "prettier": "^3.8.1",
     "tw-animate-css": "^1.4.0",
     "typescript": "~6.0.3",
     "vite": "^8.0.10",
+    "vue-eslint-parser": "^10.4.0",
     "vue-tsc": "^3.2.7"
   }
 }