Python check inventory

scripts/python_check_files.json is the single ordered list of Python files checked by the root CI Verify job. Add a new module or test here once, rather than editing three commands in .github/workflows/ci.yml.

Run the same commands locally from any working directory by naming the launcher:

python scripts/python_checks.py ruff
python scripts/python_checks.py black
python scripts/python_checks.py compile

The launcher uses its active Python interpreter and the repository working directory, passes filenames as separate arguments without a shell, and returns the selected tool’s exit status. Missing tools, missing files, malformed paths and duplicate inventory entries fail rather than silently shrinking coverage. The commands use development tools pinned in requirements-dev.txt; this helper does not install tools or change the environment.

The migration retains all 76 previously curated paths in their original order, then adds the launcher and its test. Black also keeps its pre-existing recursive replay_v0 argument. The separate replay jobs, three supported host runners, unit/smoke commands, job timeouts, dependency pins and permissions are unchanged. This remains a curated inventory, not automatic discovery of every Python file. It removes repeated workflow edits; simultaneous additions to the inventory can still require an ordinary merge reconciliation.