✨ feat(frontend): 升级 DataGrid 组件并引入高性能拖拽交互

- 实现基于原生 DOM 事件的零渲染列宽拖拽，彻底解决卡顿与误触排序问题
- 查询编辑器集成 DataGrid，支持 SQL 结果直接编辑与事务提交
- 侧边栏新增上下文感知的 "新建查询" 快捷入口
- 优化 TabManager 渲染逻辑与全局布局，消除不必要的滚动条

main.go

@@ -3,6 +3,8 @@ package main
 import (
 	"embed"
 
+	"GoNavi-Wails/internal/app"
+
 	"github.com/wailsapp/wails/v2"
 	"github.com/wailsapp/wails/v2/pkg/options"
 	"github.com/wailsapp/wails/v2/pkg/options/assetserver"
@@ -13,7 +15,7 @@ var assets embed.FS
 
 func main() {
 	// Create an instance of the app structure
-	app := NewApp()
+	application := app.NewApp()
 
 	// Create application with options
 	err := wails.Run(&options.App{
@@ -24,14 +26,14 @@ func main() {
 			Assets: assets,
 		},
 		BackgroundColour: &options.RGBA{R: 27, G: 38, B: 54, A: 1},
-		OnStartup:        app.startup,
-		OnShutdown:       app.shutdown, // Bind shutdown method
+		OnStartup:        application.Startup,
+		OnShutdown:       application.Shutdown,
 		Bind: []interface{}{
-			app,
+			application,
 		},
 	})
 
 	if err != nil {
 		println("Error:", err.Error())
 	}
-}
+}