Is your feature request related to a problem? Please describe.

Currently we have mypy enabled but only for integration_tests dir (https://github.com/apache/polaris/blob/main/client/python/.pre-commit-config.yaml#L39C17-L39C34). This seems to be odd to have mypy only for integration but not for the actual CLI code base. If we do want to enforce code quality for static type checking via mypy, I would think we should do it on the actual code base for CLI.

Describe the solution you'd like

Enable mypy for actual CLI code base.

Describe alternatives you've considered

No response

Additional context

No response