Merge branch 'claudedo/f518b71f990643cfaf73174e8617b2b5'

Drop the unused deferredUntil parameter the branch added to HandoffRequested: the worker still sends three args, so the four-arg client handler would never bind. The reset time already arrives via HandlerHandoffDeferred.

src/ClaudeDo.Worker/External/HandoffMcpTools.cs

@@ -92,6 +92,8 @@ public sealed class HandoffMcpTools
             taskId, survivingTaskIds, round.EffectivePhase, cancellationToken);
         if (deferredUntil is null)
             await _broadcaster.HandoffRequested(taskId, survivingTaskIds, round.EffectivePhase);
+        else
+            await _broadcaster.HandlerHandoffDeferred(taskId, deferredUntil.Value);
 
         return new HandoffListHandlerResult(
             true, taskId, task.Number, survivingTaskIds.Count, round.EffectivePhase, round.Coerced, deferredUntil);

src/ClaudeDo.Worker/Hub/HubBroadcaster.cs

@@ -52,6 +52,11 @@ public sealed class HubBroadcaster : IPrimeBroadcaster, IRefineBroadcaster
     public Task HandlerUsageWarning(string handlerTaskId, string message) =>
         _hub.Clients.All.SendAsync("HandlerUsageWarning", handlerTaskId, message);
 
+    // A list-handler handoff is deferred because the 5h usage window is exhausted. Mission Control
+    // updates the pane title to show the reset time, so the user sees when the session will resume.
+    public Task HandlerHandoffDeferred(string handlerTaskId, DateTimeOffset dueAt) =>
+        _hub.Clients.All.SendAsync("HandlerHandoffDeferred", handlerTaskId, dueAt);
+
     /// <summary>An agent wrote a note through MCP — the open notes editor reloads.</summary>
     public Task NotesUpdated() =>
         _hub.Clients.All.SendAsync("NotesUpdated");