fix(claude-do): merge Hide the "Submit for review" button on list-handler panes in

ClaudeDo-Task: ea129b1c8c2f47cbaa4db19a2bb5b441

src/ClaudeDo.Ui/ViewModels/MissionControl/ConPtyPaneViewModel.cs

@@ -40,10 +40,14 @@ public sealed partial class ConPtyPaneViewModel : ViewModelBase, IDisposable
     }
 
     /// <summary>Set by the host for a list-handler run ("Let Claude handle it" / "Let Claude merge
-    /// the reviews") pane -- shows the "Abandon run" action. Plain mutable property, not
-    /// <see cref="ObservableProperty"/>: the host sets it once right after construction, before the
-    /// pane is added to the visible collection, so no change notification is needed.</summary>
-    public bool IsListHandler { get; set; }
+    /// the reviews") pane -- shows the "Abandon run" action and hides the manual submit button.</summary>
+    [ObservableProperty]
+    [NotifyPropertyChangedFor(nameof(ShowSubmitForReview))]
+    private bool _isListHandler;
+
+    /// <summary>Whether the header shows "Submit for review": task-based, and not a list handler
+    /// (the handler submits its own task at the end of its merge phase).</summary>
+    public bool ShowSubmitForReview => IsTaskBased && !IsListHandler;
 
     [ObservableProperty] private string _displayTitle;
 

src/ClaudeDo.Ui/Views/MissionControl/ConPtyPaneView.axaml

@@ -26,7 +26,7 @@
                      Foreground="{DynamicResource TextDimBrush}"
                      VerticalAlignment="Center" Margin="4,0,0,0" />
           <Button Grid.Column="1" Classes="btn" Margin="0,0,6,0"
-                  IsVisible="{Binding IsTaskBased}"
+                  IsVisible="{Binding ShowSubmitForReview}"
                   Content="{loc:Tr missionControl.submitForReview}"
                   ToolTip.Tip="{loc:Tr missionControl.submitForReviewTip}"
                   Command="{Binding SubmitForReviewCommand}" />

tests/ClaudeDo.Ui.Tests/ViewModels/MissionControlViewModelTests.cs

@@ -1143,6 +1143,19 @@ public class MissionControlViewModelTests : IDisposable
         }
     }
 
+    // The handler submits its own task, so only a non-handler task-based pane shows the button.
+    [Fact]
+    public async Task ShowSubmitForReview_FalseForListHandler_TrueForNormalTaskPane()
+    {
+        var worker = new RecordingAbandonWorker();
+        using var vm = BuildVm(worker);
+        await vm.OpenConPtySessionAsync("t1");
+        await vm.OpenMergeHelperConPtySessionAsync("L1", new[] { "t2" });
+
+        Assert.True(vm.ConPtySessions[0].ShowSubmitForReview);
+        Assert.False(vm.ConPtySessions[1].ShowSubmitForReview);
+    }
+
     // A plain OpenConPtySessionAsync pane (not a list handler) never shows/allows the action --
     // acceptance criterion 5 ("only at handler panes").
     [Fact]