chore: initial commit

- Wails v2 + Go 1.21+ + Vue 3 dark UI
- 3 buttons: Check env (auto-install dsh) / Start dsh web / Stop
- 升级 / 检查版本 一键按钮
- 启动后窗口自动最小化到 Dock
- 顶部 logo 鼠标 hover 显示大图预览
- scripts/: build-mac.sh, build-windows.bat, install-app.sh
- ui-design/: 视觉设计稿 (HTML + tokens)

frontend/package.json

@@ -0,0 +1,18 @@
+{
+  "name": "frontend",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "vite build",
+    "preview": "vite preview"
+  },
+  "dependencies": {
+    "vue": "^3.5.0"
+  },
+  "devDependencies": {
+    "@vitejs/plugin-vue": "^6.0.0",
+    "vite": "^7.0.0"
+  }
+}