Windows supported?

At https://github.com/eWaterCycle/grpc4bmi/blob/8a10ae580f9e52258c939b18caa8654d32f19074/grpc4bmi/bmi_client_docker.py#L68 `getuid()` method is used. This method is only available on [Unix](https://docs.python.org/3/library/os.html#os.getuid). Can it be made clear in the docs, install, usage that Docker or Apptainer on Windows does not work.

Read grpc4bmi/bmi_client_docker.py at line 68 and verify the os.getuid dependency described in the issue. Then locate the documentation, installation, and usage sections that describe Docker or Apptainer support. Done means those materials clearly state the Windows limitation and the affected workflows.

Written by the indexing model from the issue text.