Convert commands(`agJ`, `anj`, `pi`) to rizin APIs

[imbillow]

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• [ ] I've read the guidelines for contributing to this repository
• [ ] I made sure to follow the project's coding style
• [ ] I've updated the documentation with the relevant information (if needed)

Detailed description

• agJ
• anj
• pi

Test plan (required)

Closing issues

Partially addresses https://github.com/rizinorg/cutter/issues/2666

[imbillow]

Maybe it's because of redefinition to __timezone, but it's timezone in rz_time.h, which is confusing And I found that compiling rizin with msvc was successful, But it fails to compile cutter's cpp file

[karliss]

This PR will probably fix #2800 (although I am not sure about underlying cause of printing invalid json which would still be good to fix in rizin). Need to recheck after this is PR is merged.