Jobs move through .state/inbox/building/testing/review/failed/shipped/logs at
runtime, which constantly dirtied the repo and blocked clean rebases. Ignore
the per-job lifecycle files (keeping each dir via .gitkeep) and stop tracking
the consumed inbox job instances.
Generated with [Devin](https://cli.devin.ai/docs)
Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>