Fixes ruff F401 (unused os import, unused _get_root_direct alias) and F841 (unused parent variable) that caused CI lint failure. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Fixes ruff F401 (unused os import, unused _get_root_direct alias) and F841 (unused parent variable) that caused CI lint failure. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>