4558: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding)
4558: distributor numbers (LCSC map, Component Ocean)
4558: restore the component block (pinout + model declarations) from this page's own README and symbol
4558: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero
4558: laser-etched CAD + chip hero (factory 2.0.0 backfill)
4558: laser-etched CAD + chip hero (factory 2.0.0 backfill)
4558: backfill missing artifacts (hero, etch)
Initial commit: component/4558