* init branch
Add GitHub Actions release workflow for C API
add release linux-arm64
remove c api version
refact some code
add api reference
* feat(c-api): add nullable/doc-result APIs for agency migration (#234)
* Flattened index parameters structure
* refact c api code
* remove RAII guard
* refact use opaque pointer pattern
* refact version info
* refact use pure opaque pointers
* use typedef instead of enum
* fix set_last_error
* fix build yml
* fix doc.h
* remove wheel exclude
* fix c msvc link
* remove release yml
* fix c link libstdc++
* fix c link libgcc
---------
Co-authored-by: Donny/강동윤 <kdy.1997.dev@gmail.com>
lichen2015