Reverse engineered prompt

Build me a simple Python command line tool called Fox CC that feels fast and easy to use. I want it to show how card number formats work for learning and testing, not for real payments. It should be able to generate one or many fake sample card numbers from a BIN pattern, run a basic checksum validation, and check whether an entered number matches the expected format and checksum.

Please make it run from python cc.py and keep setup straightforward for Linux, Termux, and Windows. A small menu in the terminal is enough. I also want clear warnings in the app and README that this is only for education, QA, and sandbox testing, never for real card data. If possible, keep it limited to obvious test ranges or clearly marked dummy output so it cannot be misused.

Make the project feel polished but lightweight, with simple install steps and sensible error messages. You can look up current docs online if you need to.

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