feat(ui): add Continue and Reset commands to DetailsIslandViewModel

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

@@ -39,11 +39,21 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
     public bool IsDone    => AgentStatusLabel == "Done";
     public bool IsFailed  => AgentStatusLabel == "Failed";
 
+    [ObservableProperty]
+    [NotifyCanExecuteChangedFor(nameof(ContinueCommand))]
+    [NotifyCanExecuteChangedFor(nameof(ResetCommand))]
+    private bool _showFailedActions;
+
+    [ObservableProperty]
+    [NotifyCanExecuteChangedFor(nameof(ContinueCommand))]
+    private string? _latestRunSessionId;
+
     partial void OnAgentStatusLabelChanged(string value)
     {
         OnPropertyChanged(nameof(IsRunning));
         OnPropertyChanged(nameof(IsDone));
         OnPropertyChanged(nameof(IsFailed));
+        ShowFailedActions = value == "Failed";
     }
     [ObservableProperty] private string? _model;
     [ObservableProperty] private string? _worktreePath;
@@ -108,11 +118,15 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
         // Subscribe once; filter by current task id inside the handler
         _worker.TaskMessageEvent += OnTaskMessage;
 
-        // Re-evaluate RunNow CanExecute when worker connection flips.
+        // Re-evaluate CanExecute when worker connection flips.
         _worker.PropertyChanged += (_, e) =>
         {
             if (e.PropertyName == nameof(WorkerClient.IsConnected))
+            {
                 RunNowCommand.NotifyCanExecuteChanged();
+                ContinueCommand.NotifyCanExecuteChanged();
+                ResetCommand.NotifyCanExecuteChanged();
+            }
         };
 
         // If the task row's live status changes (e.g. TaskStarted/Finished), mirror it.
@@ -215,6 +229,8 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
             WorktreePath = null;
             BranchLine = null;
             AgentStatusLabel = "Idle";
+            LatestRunSessionId = null;
+            ShowFailedActions = false;
             return;
         }
 
@@ -243,6 +259,11 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
             BranchLine = entity.Worktree is { } w ? $"{w.BranchName} \u2190 main" : null;
             AgentStatusLabel = entity.Status.ToString();
 
+            var runRepo = new TaskRunRepository(ctx);
+            var latestRun = await runRepo.GetLatestByTaskIdAsync(row.Id, ct);
+            ct.ThrowIfCancellationRequested();
+            LatestRunSessionId = latestRun?.SessionId;
+
             // Subscribe only after DB load confirms the task exists
             _subscribedTaskId = row.Id;
 
@@ -391,6 +412,32 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
 
     private bool CanRunNow() =>
         Task != null && _worker.IsConnected && !IsRunning;
+
+    [RelayCommand(CanExecute = nameof(CanContinue))]
+    private async System.Threading.Tasks.Task ContinueAsync()
+    {
+        if (Task == null) return;
+        await _worker.ContinueTaskAsync(Task.Id, "Continue working on this task.");
+    }
+
+    private bool CanContinue() =>
+        Task != null && _worker.IsConnected && ShowFailedActions && !string.IsNullOrEmpty(LatestRunSessionId);
+
+    [RelayCommand(CanExecute = nameof(CanReset))]
+    private async System.Threading.Tasks.Task ResetAsync()
+    {
+        if (Task == null) return;
+        if (ConfirmAsync != null)
+        {
+            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);
+    }
+
+    private bool CanReset() =>
+        Task != null && _worker.IsConnected && ShowFailedActions;
 }
 
 public sealed partial class SubtaskRowViewModel : ViewModelBase