Set a title to the sub-session

So that the runtime doesn't try and set a title for these

Signed-off-by: Djordje Lukic <djordje.lukic@docker.com>

Author: rumpl

pkg/runtime/runtime.go

@@ -719,6 +719,7 @@ func (r *Runtime) handleTaskTransfer(ctx context.Context, sess *session.Session,
 	slog.Debug("Creating new session with parent session", "parent_session_id", sess.ID, "tools_approved", sess.ToolsApproved)
 	s := session.New(session.WithSystemMessage(memberAgentTask), session.WithUserMessage("", "Follow the default instructions"))
 	s.SendUserMessage = false
+	s.Title = "Transferred task"
 	s.ToolsApproved = sess.ToolsApproved
 
 	for event := range r.RunStream(ctx, s) {