feat(ui): replace LiveLines with formatted LiveText, add log reload and start feedback

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

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

@@ -1,3 +1,4 @@
+using System.ComponentModel;
 using Avalonia.Controls;
 using Avalonia.Input;
 using Avalonia.Interactivity;
@@ -31,4 +32,22 @@ public partial class TaskDetailView : UserControl
     {
         this.FindControl<TextBox>("TitleBox")?.Focus();
     }
+
+    protected override void OnDataContextChanged(EventArgs e)
+    {
+        base.OnDataContextChanged(e);
+        if (DataContext is TaskDetailViewModel vm)
+        {
+            vm.PropertyChanged += OnViewModelPropertyChanged;
+        }
+    }
+
+    private void OnViewModelPropertyChanged(object? sender, PropertyChangedEventArgs e)
+    {
+        if (e.PropertyName == nameof(TaskDetailViewModel.LiveText))
+        {
+            var scroll = this.FindControl<ScrollViewer>("LiveOutputScroll");
+            scroll?.ScrollToEnd();
+        }
+    }
 }