jdholtz/auto-southwest-check-in ? reverse-engineered prompt

Build me a Python tool that automatically checks me in for my Southwest flights as soon as check in opens, about 24 hours before departure.

I want it to work two ways, either I give it a confirmation number with my first and last name, or I can log in with my Southwest account and have it handle all of my trips automatically. It should also support a config file for saved settings, and it would be great if it could run easily in Docker too.

If possible, add a way to watch for fare drops and notify me if the price goes down before the flight. Include clear command line usage, a help message, and a verbose mode for troubleshooting. Make sure it handles the usual edge cases like international flights where passport info needs to be filled in ahead of time, and if you need to look up current docs online while building it, go ahead.