mcp23s17t-e-ss: renamed from mcp23s17t-e, the part it was built from (MCP23S17T-E/SS); family listed
Rename mcp23s17t-e -> mcp23s17t-e-ss
mcp23s17t-e: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding)
Brief states the pinout check that actually ran (was an unconditional "Datasheet-verified pinout")
mcp23s17t-e: laser-etched CAD + chip hero (factory 2.0.0 backfill)
mcp23s17t-e: backfill missing artifacts (variants)
mcp23s17t-e: publish the laser-etched STEP alongside the bare one
pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left)
mcp23s17t-e: factory component page (tier=mfr)
Initial commit: component/mcp23s17t-e