Labelled layouts for both halves, and the overview redrawn from the real
shapes rather than a placeholder ergo core. The 36/39 asymmetry means the two
halves are separate board designs, not one file mirrored - README and BOM
updated to match.
100 of the 104 positions now have a physical key; only Insert, PrtSc, ScrLk
and Pause need a layer.
Co-Authored-By: Claude Opus 5 <[email protected]>
