feat: 使用 React + Vite + shadcn/ui 重构前端

- 使用 React 19 + TypeScript + Vite 7 重构整个前端
- 集成 shadcn/ui 组件库和 Tailwind CSS v4
- 使用 TanStack Query 管理服务端状态
- 使用 Zustand 管理客户端状态（认证）
- 使用 React Router v7 实现路由
- 实现浅粉色主题，支持深色模式
- 添加 API 拦截器和全局错误处理
- 优化 Toast 通知样式
- 管理页面按钮右对齐
- Token 显示脱敏处理

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

frontend/package.json

@@ -0,0 +1,43 @@
+{
+  "name": "frontend",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "tsc && vite build",
+    "lint": "eslint .",
+    "preview": "vite preview"
+  },
+  "devDependencies": {
+    "@eslint/js": "^9.39.2",
+    "@types/node": "^25.0.3",
+    "@types/react": "^19.2.7",
+    "@types/react-dom": "^19.2.3",
+    "@vitejs/plugin-react": "^5.1.2",
+    "autoprefixer": "^10.4.23",
+    "eslint": "^9.39.2",
+    "eslint-plugin-react-hooks": "^7.0.1",
+    "eslint-plugin-react-refresh": "^0.4.26",
+    "globals": "^16.5.0",
+    "postcss": "^8.5.6",
+    "tailwindcss": "^4.1.18",
+    "typescript": "~5.9.3",
+    "typescript-eslint": "^8.50.0",
+    "vite": "^7.2.4"
+  },
+  "dependencies": {
+    "@radix-ui/react-dialog": "^1.1.15",
+    "@radix-ui/react-slot": "^1.2.4",
+    "@tailwindcss/postcss": "^4.1.18",
+    "@tanstack/react-query": "^5.90.12",
+    "class-variance-authority": "^0.7.1",
+    "clsx": "^2.1.1",
+    "lucide-react": "^0.562.0",
+    "react": "^19.2.3",
+    "react-dom": "^19.2.3",
+    "react-router-dom": "^7.11.0",
+    "tailwind-merge": "^3.4.0",
+    "zustand": "^5.0.9"
+  }
+}