feat: newapi-dashboard 全栈项目初始化

为 new-api (LLM API 网关) 构建独立前端管理面板:
- React 18 + TypeScript + Vite + Ant Design 5 前端
- Node.js + Express + better-sqlite3 BFF 后端
- 登录页: 站点选择器 + UserID + AccessToken 认证
- 仪表盘: 用户信息、额度环形图、7天趋势图、模型饼图、令牌概览、日志时间线
- 账单页: 筛选日志表格、模型消耗柱状图、充值记录、CSV/PDF 导出(HMAC签名)
- 管理员站点管理: 站点 CRUD
- API 代理: 多站点切换，会话管理

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

package.json

@@ -0,0 +1,44 @@
+{
+  "name": "newapi-dashboard",
+  "private": true,
+  "version": "1.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "tsc -b && vite build",
+    "preview": "vite preview",
+    "server": "tsx watch server/index.ts",
+    "start": "concurrently \"npm run server\" \"npm run dev\""
+  },
+  "dependencies": {
+    "react": "^18.3.1",
+    "react-dom": "^18.3.1",
+    "react-router-dom": "^6.28.0",
+    "antd": "^5.22.0",
+    "@ant-design/icons": "^5.5.0",
+    "@ant-design/charts": "^2.2.0",
+    "zustand": "^5.0.0",
+    "axios": "^1.7.0",
+    "dayjs": "^1.11.13",
+    "express": "^4.21.0",
+    "better-sqlite3": "^11.6.0",
+    "http-proxy-middleware": "^3.0.0",
+    "pdfkit": "^0.15.0",
+    "uuid": "^11.0.0",
+    "cors": "^2.8.5",
+    "concurrently": "^9.1.0"
+  },
+  "devDependencies": {
+    "@types/react": "^18.3.12",
+    "@types/react-dom": "^18.3.1",
+    "@types/express": "^5.0.0",
+    "@types/better-sqlite3": "^7.6.12",
+    "@types/cors": "^2.8.17",
+    "@types/uuid": "^10.0.0",
+    "@types/pdfkit": "^0.13.5",
+    "@vitejs/plugin-react": "^4.3.4",
+    "typescript": "^5.6.0",
+    "tsx": "^4.19.0",
+    "vite": "^6.0.0"
+  }
+}