feat: 初始化 Wails + React + Go 桌面应用模板

- Wails v2.16.0 + React 19 + TypeScript + Vite 7
- 插件系统（build tag 控制编译，plugin.json 运行时配置）
- 支付插件（授权、账号、订单、退款、账单）
- 高并发基础设施（任务池、批量处理器、限流器、环形缓冲、管道）
- Windows 系统托盘（Win32 API）
- CodeGraph 索引 + .memory 记忆包
- 默认图标 assets/icon.png

frontend/package.json

@@ -0,0 +1,22 @@
+{
+  "name": "frontend",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "tsc && vite build",
+    "preview": "vite preview"
+  },
+  "dependencies": {
+    "react": "^19.1.0",
+    "react-dom": "^19.1.0"
+  },
+  "devDependencies": {
+    "@types/react": "^19.1.0",
+    "@types/react-dom": "^19.1.0",
+    "@vitejs/plugin-react": "^5.0.0",
+    "typescript": "^5.6.3",
+    "vite": "^7.0.0"
+  }
+}