Fix: some Reactive stuff

src/ClaudeDo.Worker/Hub/WorkerHub.cs

@@ -774,6 +774,7 @@ public sealed class WorkerHub : Microsoft.AspNetCore.SignalR.Hub
     {
         if (_interactiveLaunchSpec is null)
             throw new InvalidOperationException("Interactive launch spec service is not configured.");
+        _broadcaster.WorktreeUpdated(taskId);
         return _interactiveLaunchSpec.BuildForTaskAsync(taskId, Context.ConnectionAborted);
     });