feat(ui): default to the Git tab for manual and interactive tasks

A hand-driven task produces no streamed agent output, so the Output tab
opened empty. Bind now selects git for manual/interactive rows and resets
to output for autonomous ones.

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

@@ -601,6 +601,10 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase, IDisposable
             return;
         }
 
+        // A hand-driven task (manual reminder or a live ConPTY session) produces no streamed
+        // agent output, so the Output tab would open empty -- its work shows up as git changes.
+        SelectedTab = row.IsManual || row.HasInteractiveSession ? "git" : "output";
+
         _ = BindAsync(row, ct);
     }