feat: 添加环境变量示例，更新样式和依赖，增强全局状态管理

package.json

@@ -10,8 +10,13 @@
     "postinstall": "nuxt prepare"
   },
   "dependencies": {
+    "@pinia/nuxt": "0.10.1",
+    "@tailwindcss/typography": "^0.5.16",
     "@tailwindcss/vite": "^4.0.14",
+    "@uniiem/uuid": "^0.2.1",
+    "dotenv": "^16.4.7",
     "nuxt": "^3.16.0",
+    "pinia": "^3.0.1",
     "tailwindcss": "^4.0.14",
     "vue": "^3.5.13",
     "vue-router": "^4.5.0"