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

src/ClaudeDo.App/App.axaml.cs

@@ -1,5 +1,6 @@
 using System;
 using Avalonia;
+using Avalonia.Controls;
 using Avalonia.Controls.ApplicationLifetimes;
 using Avalonia.Markup.Xaml;
 using ClaudeDo.Ui.Services;
@@ -32,6 +33,10 @@ public partial class App : Application
 
             FocusClearing.Install();
 
+            // The main window is authoritative — closing it shuts the app down even if the
+            // modeless Mission Control window is still open.
+            desktop.ShutdownMode = ShutdownMode.OnMainWindowClose;
+
             desktop.MainWindow = new MainWindow
             {
                 DataContext = services.GetRequiredService<IslandsShellViewModel>(),

src/ClaudeDo.App/Program.cs

@@ -168,8 +168,6 @@ sealed class Program
             shell.ConflictResolverFactory =
                 sp.GetRequiredService<Func<string, ClaudeDo.Ui.ViewModels.Conflicts.ConflictResolverViewModel>>();
             sp.GetRequiredService<MergeCoordinator>().Handler = shell.RequestConflictResolutionAsync;
-            var missionControl = sp.GetRequiredService<MissionControlViewModel>();
-            missionControl.OpenInApp = id => _ = shell.RevealTaskAsync(id);
             return shell;
         });
 

src/ClaudeDo.Ui/Design/IslandStyles.axaml

@@ -21,6 +21,8 @@
     <!-- Window control icons — filled geometries (PathIcon fills, not strokes) -->
     <StreamGeometry x:Key="Icon.WinMin">M4 9 H16 V11 H4 Z</StreamGeometry>
     <StreamGeometry x:Key="Icon.WinMax">M4 4 H16 V6 H4 Z M4 14 H16 V16 H4 Z M4 4 H6 V16 H4 Z M14 4 H16 V16 H14 Z</StreamGeometry>
+    <!-- Icon.Grid (four filled panes — Mission Control launcher) -->
+    <StreamGeometry x:Key="Icon.Grid">M3 3 H9 V9 H3 Z M11 3 H17 V9 H11 Z M3 11 H9 V17 H3 Z M11 11 H17 V17 H11 Z</StreamGeometry>
     <StreamGeometry x:Key="Icon.WinRestore">M4 7 H13 V9 H4 Z M4 14 H13 V16 H4 Z M4 7 H6 V16 H4 Z M11 7 H13 V16 H11 Z M7 4 H16 V6 H7 Z M14 4 H16 V13 H14 Z</StreamGeometry>
     <StreamGeometry x:Key="Icon.WinClose">M4 5 L5 4 L16 15 L15 16 Z M15 4 L16 5 L5 16 L4 15 Z</StreamGeometry>
     <!-- Brand check glyph — filled rounded square with inset tick -->

src/ClaudeDo.Ui/Services/IDialogService.cs

@@ -1,4 +1,5 @@
 using System.Threading.Tasks;
+using ClaudeDo.Ui.ViewModels;
 using ClaudeDo.Ui.ViewModels.Conflicts;
 using ClaudeDo.Ui.ViewModels.Modals;
 
@@ -28,4 +29,7 @@ public interface IDialogService
 
     /// <summary>Modal error notice with a single dismiss button.</summary>
     Task ShowErrorAsync(string message);
+
+    /// <summary>Show (or re-show + focus) the modeless Mission Control window. Lazily created; hides on close.</summary>
+    void ShowMissionControl(MissionControlViewModel vm);
 }

src/ClaudeDo.Ui/ViewModels/IslandsShellViewModel.cs

@@ -20,6 +20,7 @@ public sealed partial class IslandsShellViewModel : ViewModelBase, IDisposable
     public TasksIslandViewModel? Tasks { get; }
     public DetailsIslandViewModel? Details { get; }
     public IWorkerClient? Worker { get; }
+    public MissionControlViewModel? MissionControl { get; }
     public UpdateCheckService UpdateCheck => _updateCheck;
 
     public string ConnectionText =>
@@ -206,9 +207,12 @@ public sealed partial class IslandsShellViewModel : ViewModelBase, IDisposable
         Func<WorktreesOverviewModalViewModel> worktreesOverviewVmFactory,
         Func<WeeklyReportModalViewModel> weeklyReportVmFactory,
         Func<MergeModalViewModel> mergeVmFactory,
-        Func<RepoImportModalViewModel> repoImportVmFactory)
+        Func<RepoImportModalViewModel> repoImportVmFactory,
+        MissionControlViewModel missionControl)
     {
         Lists = lists; Tasks = tasks; Details = details; Worker = worker;
+        MissionControl = missionControl;
+        MissionControl.OpenInApp = id => _ = RevealTaskAsync(id);
         _updateCheck = updateCheck;
         _installerLocator = installerLocator;
         _workerLocator = workerLocator;
@@ -312,6 +316,13 @@ public sealed partial class IslandsShellViewModel : ViewModelBase, IDisposable
         if (InlineUpdateStatus == text) InlineUpdateStatus = null;
     }
 
+    [RelayCommand]
+    private void OpenMissionControl()
+    {
+        if (Dialogs is not null && MissionControl is not null)
+            Dialogs.ShowMissionControl(MissionControl);
+    }
+
     [RelayCommand]
     private async Task OpenAbout()
     {

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>();