Set PYTHONDONTWRITEBYTECODE for the shared Python runner and the
root test-suite launcher so local test runs do not create __pycache__
artifacts inside skills.
This keeps npm run test deterministic and avoids false negatives in the
editorial bundle inventory checks.
Consolidate the repository into clearer apps, tools, and layered docs areas so contributors can navigate and maintain it more reliably. Align validation, metadata sync, and CI around the same canonical workflow to reduce drift across local checks and GitHub Actions.