feat(ui): reveal a task by id from anywhere

src/ClaudeDo.Ui/ViewModels/Islands/TaskMonitorViewModel.cs

@@ -1,6 +1,7 @@
 using System.Collections.ObjectModel;
 using System.Text;
 using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
 using ClaudeDo.Data;
 using ClaudeDo.Data.Repositories;
 using ClaudeDo.Ui.Helpers;
@@ -131,6 +132,16 @@ public sealed partial class TaskMonitorViewModel : ViewModelBase, IDisposable
         Roadblocks = null;
     }
 
+    // Set by the host (e.g. Mission Control) to navigate the main app to this task.
+    public Action<string>? OpenInAppRequested { get; set; }
+
+    [RelayCommand]
+    private void OpenInApp()
+    {
+        if (!string.IsNullOrEmpty(_subscribedTaskId))
+            OpenInAppRequested?.Invoke(_subscribedTaskId);
+    }
+
     public void SetTaskId(string id) => _subscribedTaskId = id;
 
     public void ApplyState(ClaudeDo.Data.Models.TaskStatus status) =>