ty joins the dev dependency group, locked at 0.0.89, and a local
hook runs `uv run ty check` over the whole project whenever Python
files change. [tool.ty.src] limits the check to pqcli/ and tests/,
so agent worktrees under .claude/ are not checked as duplicate
copies of the project.
prek replaces pre-commit as the hook runner and reads the same
config. A new commit-msg hook in .prek/ rejects subjects over 50
characters, subjects without a module prefix, and body lines over
72 characters. Install the hooks with `uv run prek install`, and run
them with `just lint`.
ruff format keeps black's style at the same line length, and ruff
check covers import sorting plus pycodestyle and pyflakes. Three
comments and a test regex are wrapped to fit 79 columns.