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)

main.go

@@ -0,0 +1,68 @@
+package main
+
+import (
+	"embed"
+	"fmt"
+	"os"
+
+	"github.com/wailsapp/wails/v2"
+	"github.com/wailsapp/wails/v2/pkg/options"
+	"github.com/wailsapp/wails/v2/pkg/options/assetserver"
+	"github.com/wailsapp/wails/v2/pkg/options/mac"
+)
+
+//go:embed all:frontend/dist
+var assets embed.FS
+
+func main() {
+	// 调试模式:不启 GUI,直接调 CheckEnv 走完流程,看是不是会崩。
+	if len(os.Args) > 1 && os.Args[1] == "--selftest" {
+		app := NewApp()
+		fmt.Println("=== CheckEnv ===")
+		r := app.CheckEnv()
+		fmt.Printf("nodeOK=%v dshPath=%q dshVer=%q cred=%v portBusy=%v\n",
+			r.NodeOK, r.DshPath, r.DshVersion, r.CredExists, r.PortBusy)
+		fmt.Printf("issues=%v\n", r.Issues)
+		fmt.Println("=== CheckUpdate ===")
+		u := app.CheckUpdate()
+		fmt.Printf("installed=%q latest=%q hasUpdate=%v\n",
+			u.Installed, u.Latest, u.HasUpdate)
+		fmt.Println("=== done, exiting ===")
+		return
+	}
+
+	app := NewApp()
+
+	err := wails.Run(&options.App{
+		Title:  "dsh-launcher",
+		Width:  1040,
+		Height: 1280,
+		AssetServer: &assetserver.Options{
+			Assets: assets,
+		},
+		BackgroundColour: &options.RGBA{R: 17, G: 24, B: 39, A: 1},
+		OnStartup:        app.startup,
+		OnShutdown:       app.shutdown,
+		Bind: []interface{}{
+			app,
+		},
+		Mac: &mac.Options{
+			TitleBar: &mac.TitleBar{
+				TitlebarAppearsTransparent: true,
+				HideTitle:                  false,
+				HideTitleBar:               false,
+				FullSizeContent:            false,
+			},
+			Appearance:           mac.NSAppearanceNameDarkAqua,
+			WebviewIsTransparent: false,
+			About: &mac.AboutInfo{
+				Title:   "dsh-launcher",
+				Message: "本地按需启动 dsh web UI。",
+			},
+		},
+	})
+
+	if err != nil {
+		println("Error:", err.Error())
+	}
+}