sn74hc08: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding)
sn74hc08: laser-etched CAD + chip hero (factory 2.0.0 backfill)
sn74hc08: stamp component.logic (74HC08) from component-ocean
sn74hc08: backfill missing artifacts (etch, variants)
add validated EAGLE .lbr (Fusion library)
add .step (Fusion 3D source)
Initial commit: component/sn74hc08