新增: Tauri 2.0 桌面版脚手架(B0)

- src-tauri/ 完整项目结构: Cargo.toml / build.rs / tauri.conf.json
- Rust 入口 lib.rs: ping IPC 命令验证双向通信
- 应用图标生成(SVG → ico/icns/png 多尺寸)
- Tauri 窗口配置: 1280×800, 最小 900×600, 可缩放
- package.json 新增 tauri / tauri:dev / tauri:build 脚本
- vite.config.ts 环境检测: Tauri 模式端口 5173, Web 模式 8080
- @tauri-apps/cli + @tauri-apps/api 依赖安装
- cargo check 编译通过,前端构建不受影响
- 桌面版与 Web 版共享同一套前端代码

package.json

@@ -7,12 +7,17 @@
   "scripts": {
     "dev": "vite",
     "build": "vue-tsc -b && vite build",
-    "preview": "vite preview"
+    "preview": "vite preview",
+    "tauri": "tauri",
+    "tauri:dev": "tauri dev",
+    "tauri:build": "tauri build"
   },
   "dependencies": {
+    "@tauri-apps/api": "^2.11.1",
     "vue": "^3.5.13"
   },
   "devDependencies": {
+    "@tauri-apps/cli": "^2.11.4",
     "@vitejs/plugin-vue": "^5.2.1",
     "typescript": "~5.6.3",
     "vite": "^6.0.5",