fix(ui): early-return in ResetAsync when ConfirmAsync is unwired

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

@@ -427,12 +427,12 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
     private async System.Threading.Tasks.Task ResetAsync()
     {
         if (Task == null) return;
-        if (ConfirmAsync != null)
-        {
+        if (ConfirmAsync == null) return;
+
         var branchName = $"claudedo/{Task.Id.Replace("-", "")}";
         var ok = await ConfirmAsync($"Discard worktree and reset task?\nThis deletes branch {branchName} and all uncommitted changes.");
         if (!ok) return;
-        }
+
         await _worker.ResetTaskAsync(Task.Id);
     }