use on Windows

[phfr]

1. I sadly have some contributors that use windows, seems by default git on windows (note: wsl git doesnt do this) converts newlines \n to \r\n on checkout (and back when pushing).
   this fucks up devcontainer post install shell script running in linnux ("bash\r" not found), I fixed this by putting the following line unto .gitattributes:

*.sh text eol=lf

not sure if this might have any undesired sideeffects?

2. I need to add this line to the post install (before uv sync) for git to work (win & osx)

git config --global --add safe.directory /workspaces/<repo-name>

I did not create a PR because not sure if this has sideeffects, happy for feedback