ROME — The Vatican has detailed laws, rituals and roles to ensure the transfer of power when a pope dies or resigns. But none of them apply when he is sick or even unconscious, and there are no specific norms governing what happens when a pope becomes incapacitated. As a result, even though Pope Francis remains hospitalized while he recovers from intestinal surgery performed Sunday at a Rome hospital, he is still the pontiff and very much in charge. The Vatican said Tuesday that Francis had eaten breakfast, read newspapers and had a walk, and that his postoperative recovery was proceeding normally.