Add optional pre-commit hooks for local contributor checks

What would you like to be added: Add an optional pre-commit configuration to the repository, along with documentation on how contributors can enable it locally.

Why is this needed: This would provide contributors with fast, local feedback for formatting, linting, and basic checks before creating commits, helping catch simple issues early. Making it optional ensures it does not introduce friction or block contributors who prefer not to use it, while still offering a convenient quality-of-life improvement for those who do.