Set up Python quality gates (ruff lint/format, type checking, pytest + coverage, complexity, dead code, duplicates, file length) in any Python repo, wired through `prek` (pre-commit reimagined) with a `check.sh` orchestrator underneath. This skill should be used when the user says "add quality gates", "set up linting", "add python checks", "quality gate setup", "add prek", "add check script", "enforce code quality", or wants to establish code quality infrastructure in a Python project.
