tp321-tr: 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")
tp321-tr: laser-etched CAD + chip hero (factory 2.0.0 backfill)
tp321-tr: backfill missing artifacts (variants)
tp321-tr: 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)
tp321-tr: factory component page (tier=lcsc)
Initial commit: component/tp321-tr