mcp23s17: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding)
mcp23s17: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero
mcp23s17: laser-etched CAD + chip hero (factory 2.0.0 backfill)
mcp23s17: laser-etched CAD + chip hero (factory 2.0.0 backfill)
mcp23s17: backfill missing artifacts (etch, variants)
add validated EAGLE .lbr (Fusion library)
MCP23S17: validated Fusion/EAGLE library + adom-lbr hub, generated from this page's KiCad sources
add .step (Fusion 3D source)
Initial commit: component/mcp23s17