feat(ui): 集成 shadcn/ui 原语、Framer Motion 动画和 Sonner Toast

- 添加 shadcn/ui 风格原语组件 (Button, Input, Dialog, Select, Slider, Switch, Tooltip)
- 集成 Framer Motion 动画库，添加动画预设
- 集成 Sonner Toast 通知系统
- 改造 ChatMessage 添加淡入动画和复制按钮
- 改造 Sidebar 添加动画、空状态引导和骨架屏
- 改造 ConfigPanel 使用新原语组件
- 优化 Chat 页面空状态和连接状态指示器
- 添加 tailwindcss-animate 插件

packages/desktop/package.json

@@ -18,12 +18,13 @@
     "@tauri-apps/plugin-dialog": "^2.2.0",
     "@tauri-apps/plugin-fs": "^2.2.0",
     "@tauri-apps/plugin-shell": "^2.2.0",
+    "clsx": "^2.1.0",
+    "framer-motion": "^12.23.26",
+    "lucide-react": "^0.344.0",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
     "react-router-dom": "^6.22.0",
-    "zustand": "^4.5.0",
-    "lucide-react": "^0.344.0",
-    "clsx": "^2.1.0"
+    "zustand": "^4.5.0"
   },
   "devDependencies": {
     "@tauri-apps/cli": "^2.1.0",