Add support for getpgrp/getpgid/setpgid/TIOCGPGRP/TIOCSPGRP#640

Draft

wdcui wants to merge 4 commits intomainfrom

wdcui/implement-getpgrp-syscall

Commits on Feb 4, 2026

Commits on Feb 5, 2026

Add setpgid/getpgid syscalls and TIOCSPGRP ioctl for complete process group support

wdcui
and
claude
committed
Fix process group sharing and validation
wdcui
committed