[Feat]: Add PEP 561 Compliant Type Stubs (.pyi files) for Static Type Checking Please

[howardhey]

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

Currently, zai package lacks type stubs (.pyi files), causing static type checkers like Pyright/Pylance and mypy to report "Stub file not found" errors. This significantly degrades developer experience in modern Python IDEs.

Describe the solution you'd like

PEP 561 compliance is now a standard expectation for modern Python libraries. It would greatly improve usability and type safety for all users.

Describe alternatives you've considered

I could only close the strict check mode, or just type ignore command.

Additional context

No response

Code of Conduct

• I agree to follow this project's Code of Conduct

[tomsun28]

Got that thanks, we will fix this.