feat(ui): open Mission Control from the title bar

src/ClaudeDo.Ui/Views/MainWindow.axaml

@@ -88,6 +88,11 @@
         <!-- Right: window controls -->
         <StackPanel Grid.Column="2" Orientation="Horizontal" Spacing="0"
                     VerticalAlignment="Center" Margin="0,0,4,0">
+          <Button Classes="title-ctrl"
+                  Command="{Binding OpenMissionControlCommand}"
+                  ToolTip.Tip="{loc:Tr missionControl.windowTitle}">
+            <PathIcon Data="{StaticResource Icon.Grid}" Width="12" Height="12"/>
+          </Button>
           <Button Classes="title-ctrl" Click="OnMinimize">
             <PathIcon Data="{StaticResource Icon.WinMin}" Width="10" Height="10"/>
           </Button>

src/ClaudeDo.Ui/Views/MainWindow.axaml.cs

@@ -42,6 +42,12 @@ public partial class MainWindow : Window
         if (DataContext is IslandsShellViewModel vm)
         {
             vm.Dialogs = new WindowDialogService(this);
+            vm.BringToFront = () =>
+            {
+                if (WindowState == WindowState.Minimized)
+                    WindowState = WindowState.Normal;
+                Activate();
+            };
         }
     }
 

src/ClaudeDo.Ui/Views/WindowDialogService.cs

@@ -8,6 +8,7 @@ using ClaudeDo.Ui.ViewModels;
 using ClaudeDo.Ui.ViewModels.Conflicts;
 using ClaudeDo.Ui.ViewModels.Modals;
 using ClaudeDo.Ui.Views.Conflicts;
+using ClaudeDo.Ui.Views.MissionControl;
 using ClaudeDo.Ui.Views.Modals;
 
 namespace ClaudeDo.Ui.Views;
@@ -22,6 +23,7 @@ namespace ClaudeDo.Ui.Views;
 public sealed class WindowDialogService : IDialogService
 {
     private readonly Window _owner;
+    private MissionControlWindow? _missionControl;
 
     public WindowDialogService(Window owner) => _owner = owner;
 
@@ -111,6 +113,14 @@ public sealed class WindowDialogService : IDialogService
         await dlg.ShowDialog(_owner);
     }
 
+    public void ShowMissionControl(MissionControlViewModel vm)
+    {
+        _missionControl ??= new MissionControlWindow { DataContext = vm };
+        if (!_missionControl.IsVisible)
+            _missionControl.Show();          // modeless, independent top-level window
+        _missionControl.Activate();          // bring to front / focus
+    }
+
     public Task<bool> ConfirmAsync(string message)
     {
         var tcs = new TaskCompletionSource<bool>();