Design a polling system with two actors: a user and an administrator. The administrator should be able to create, delete, and update polls, ensure users vote only once per poll, and display poll results by poll and by voter. Users should be able to vote in polls.

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Design a CLI-based polling system for users and administrators to manage and participate in polls.

Admin can create a poll with a question and multiple options.
Admin can delete a poll by its unique ID.
Admin can update poll questions and options as needed.
Users can vote only once per poll, tracked by user ID.
Poll results can be displayed showing votes per option and user voting history.