Add Pre-Commit suite and CIs and upgrade code accordingly

I plan to add a suite of standard pre-commit hooks that run locally and in the CIs to check for (and in some cases, fix) issues, lint for and code quality issues, auto-format the code and ancillary files and more, based on what we have in our other repos. While I'd like to have this for v0.2.1, it won't block the release and I'm fine with bumping it as needed.