DataFlux-Robot/fluxpcb ? reverse-engineered prompt

Build me a small ESP32 S31 development board from a simple sentence, and make the whole flow go all the way through to a real PCB package.

I want USB C power, a couple of header rows, one reset or boot button, one status LED, and a clean board layout that can actually be manufactured. Please run the full pipeline, starting from requirements, then parts selection, schematic, PCB placement and routing, basic simulation checks, and firmware build checks if possible. If any check fails, fix it and try again, but do not pretend it passed.

At the end, give me the KiCad project, Gerbers, drill files, pick and place, STEP, and a short report showing what was verified and what was blocked. Keep everything traceable so I can see why each step passed. Look up current docs online if you need to.