Fatal "cmath file not found" error upon MacOS installation

### Steps to reproduce

1. Create Python 3.11 virtual environment and activate it.
2. Clone the repo: `git clone https://github.com/bytedance/InfiniteYou`
3. Install the requirements: `python -m pip install -r requirements.txt`

### Error output

```
[…]
running build_ext
building 'insightface.thirdparty.face3d.mesh.cython.mesh_core_cython' extension
creating build/temp.macosx-11.0-arm64-cpython-311/insightface/thirdparty/face3d/mesh/cython
c++ -DNDEBUG -g -fwrapv -O3 -Wall -arch arm64 -mmacosx-version-min=11.0 -Wno-nullability-completeness -Wno-expansion-to-defined -Wno-undef-prefix -fPIC -Iinsightface/thirdparty/face3d/mesh/cython -I/private/var/folders/r7/xxdlb6114759yn1rltsq8nwh0000gn/T/pip-build-env-52fbeifs/overlay/lib/python3.11/site-packages/numpy/_core/include -I/Users/jm/.virtualenvs/tempenv-536f314290f2c/include -I/Users/jm/.local/share/mise/installs/python/3.11.13/include/python3.11 -c insightface/thirdparty/face3d/mesh/cython/mesh_core.cpp -o build/temp.macosx-11.0-arm64-cpython-311/insightface/thirdparty/face3d/mesh/cython/mesh_core.o
In file included from insightface/thirdparty/face3d/mesh/cython/mesh_core.cpp:11:
insightface/thirdparty/face3d/mesh/cython/mesh_core.h:5:10: fatal error: 'cmath' file not found
5 | #include
| ^~~~~~~
1 error generated.
error: command '/usr/bin/c++' failed with exit code 1
[end of output]

note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed building wheel for insightface
```

### Environment

* MacOS Sequoia 15.5 on M3 Ultra Mac Studio

Start with requirements.txt and the insightface third-party face3d mesh extension named in the build output, then reproduce the installation on macOS Sequoia with Python 3.11. Identify why the C++ extension cannot find cmath and verify that requirements installation completes successfully in the reported environment.

Written by the indexing model from the issue text.