KianSantang777/STRIPECHARGED — reverse-engineered prompt

Build me a Python 3.13 command line app inspired by this repo that checks a list of payment card entries from a text file, but make it safe and legal. It should only work with Stripe test mode or mocked responses and must refuse real card numbers.

I want it to show a simple colorful terminal screen, read cards in common formats from card.txt, validate formatting, run checks concurrently without proxies, and print clear results like valid test card, declined test card, bad format, or error. Add setup instructions, a requirements file, and make main.py easy to run.

Please clean up the install steps and typos from the README. Look up current docs online if you need to, and include comments so a beginner can understand what is happening.