The daemon creates hq-deacon and hq-mayor sessions (headquarters sessions)
that were incorrectly flagged as orphaned by gt doctor.
Changes:
- Update orphan session check to recognize hq-* prefix in addition to gt-*
- Update orphan process check to detect 'tmux: server' process name on Linux
- Add test coverage for hq-* session validation
- Update documentation comments to reflect hq-* patterns
This fixes the false positive warnings where hq-deacon session and its
child processes were incorrectly reported as orphaned.
Co-authored-by: Roland Tritsch <roland@ailtir.com>
Co-authored-by: Claude Sonnet 4.5 <noreply@anthropic.com>