pan-devs/pancalc-tools — reverse-engineered prompt

Build me a Python tool called PanCalc Tools for Casio Prizm calculators like the fx CG50 and fx CG100.

I want normal users to open it in a friendly terminal menu, connect their calculator by USB in mass storage mode, and manage files without knowing commands. It should install, remove, and verify calculator add ins from the Pan Devs registry, using SHA256 and PGP checks so people know downloads are safe.

It should also convert common images and documents into calculator friendly files, like g3p photos or plain text, then copy them to the right folders on the calculator, such as pthings, fotos, and textos. Please sanitize file names so spaces and accents do not break on the calculator.

Include a command line version too for advanced users, plus browsing of the calculator storage, known add in detection, storage usage, and basic PGP key management. Make it installable with pip and usable on Windows, macOS, and Linux. Look up current docs online if needed.