Firmware pin devicetrees for two nRF5340 boards are now generated from the schematic netlists by script so a schematic change cannot silently diverge. The generator refuses unmapped nets, two roles on one pin, or USB off its dedicated pads, and CI compares every compiled pin against the netlist. One pin is still unverified because the module datasheet contradicts itself: page 21 puts FEM MODE on P1.04, while the page 22 sample says P0.24, which is the pack's I2S clock. Closes issue #118.