CyberChef Payment Cryptography Extensions

Update, May 2026: After completing a deeper review of the CyberChef Payments work, I split the project into a small ecosystem. The CyberChef fork remains the implementation/runtime layer, while CyberChef-Payments is now the workflow library and discovery surface. —— I built a set of payment cryptography extensions for CyberChef using Codex. The fork is at github.com/J8k3/CyberChef and there's a…