RELEASING.md

Releasing

Run every check the same way before cutting a release:

./scripts/release-check.sh

The script fails fast on the first problem and runs, in order:

1. poetry check — validate pyproject.toml
2. poetry run ruff check cellestial — lint
3. poetry run ruff format --check cellestial — format check
4. poetry run pytest — tests
5. poetry build — build package dist

When it prints all release checks passed, the release is verified.