feat: complete 2.0.7.12 platform overhaul

src/box-winUI/Views/Tools/DevEnvironmentConfigToolPage.cs

@@ -43,37 +43,21 @@ public sealed class DevEnvironmentConfigToolPage : ToolPageBase
     {
         var root = new StackPanel
         {
-            Padding = new Thickness(28, 22, 28, 28),
-            Spacing = 16
+            Padding = new Thickness(24, 20, 24, 28),
+            Spacing = 18
         };
 
-        var back = ModernUi.IconButton("\uE72B", AppLocalizer.T("返回工具箱", "Back to toolbox"), () => _goBack?.Invoke());
         var reload = ModernUi.PillButton(AppLocalizer.T("重新检测", "Detect again"), "\uE895", async () => await ReloadAsync(), primary: true);
         var downloads = ModernUi.PillButton(AppLocalizer.T("打开下载管理", "Open downloads"), "\uE896", OpenDownloadManager);
-
-        var header = new Grid { ColumnSpacing = 14 };
-        header.ColumnDefinitions.Add(new ColumnDefinition { Width = GridLength.Auto });
-        header.ColumnDefinitions.Add(new ColumnDefinition());
-        header.ColumnDefinitions.Add(new ColumnDefinition { Width = GridLength.Auto });
-        header.Children.Add(back);
-        var titlePanel = new StackPanel
-        {
-            Spacing = 4,
-            Children =
-            {
-                ModernUi.Text(AppLocalizer.T("开发环境配置", "Development Environment Setup"), 28, FontWeights.SemiBold),
-                ModernUi.Text(AppLocalizer.T("检测本机 Go、Python、Java、Docker、MySQL、Node.js、.NET、Git、Rust 和 CMake，并从官方来源下载版本。", "Detect local Go, Python, Java, Docker, MySQL, Node.js, .NET, Git, Rust, and CMake, then download versions from official sources."), 14, foreground: ModernUi.TextSecondary, maxLines: 2),
-                _statusText
-            }
-        };
-        Grid.SetColumn(titlePanel, 1);
-        header.Children.Add(titlePanel);
-
         var actionRow = new StackPanel { Orientation = Orientation.Horizontal, Spacing = 8, Children = { reload, downloads } };
-        Grid.SetColumn(actionRow, 2);
-        header.Children.Add(actionRow);
-
-        root.Children.Add(ModernUi.Card(header, new Thickness(18), radius: 8));
+        root.Children.Add(ModernUi.PageHeader(
+            AppLocalizer.T("开发环境配置", "Development Environment Setup"),
+            AppLocalizer.T("检测常用开发环境，并从官方来源选择版本和下载源。", "Detect common development environments and select versions from official sources."),
+            "\uE943",
+            actions: actionRow,
+            back: _goBack,
+            backTooltip: AppLocalizer.T("返回上一级", "Back"),
+            meta: _statusText));
         root.Children.Add(_environmentList);
 
         return new ScrollViewer