# Development / test / docs dependencies.
#
# SINGLE SOURCE: the real lists live in pyproject.toml
# ([project.optional-dependencies] dev + docs). Installed editable so a checkout
# is importable without PYTHONPATH juggling.
#
#   pip install -r requirements-dev.txt
#
# Includes: pytest + pytest-cov (test tier), ruff (the `ruff check --select I .`
# import-sort gate), mkdocs-material (docs site: `mkdocs serve`).
-e .[dev,docs]
