refactor: separation of responsibilities for cli.py

[swj9707]

Checked other resources

• This is a feature request/enhancement for Act Operator CLI, not a bug report.
• I added a clear, concise, and descriptive title for the proposal.
• I searched existing issues/PRs and did not find a duplicate.

💪 Ownership Declaration (Optional)

• 🙋 Hand-raise: I want to implement this feature myself
• 🤝 Collaboration Welcome: I want to work on this with others
• 💡 Idea Only: Proposing for someone else to implement

💡 What do you want?

When I implement act-migrate, I found issue about cli.py.
It has so many functions which can use in cli.

I decided that I needed to refector this file before writing the new feature on cli.py .
If cli.py 's refactor is not preceded, it may become difficult to maintain when new features are added.

💻 Example CLI or Code (Optional)

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📸 Screenshots or Output (Optional)

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