Add dashed copper, silk and pin-map inspection layers to component hero
Bind component hero to reviewed marked model and document display provenance
1.2.3: align with library release
1.2.0: align version and provenance
Title: 'MachineContactLarge' -> 'Machine Contact Large' (human-readable, not camelCase)
hero: new consistent-size product photo (static image)
3D: solder balls top side only
Docs: reference John's solder-ball-layer standard + animated insertion
3D: add insert animation (contact lifts out + reseats) following John's mpin lead
3D: remove the bottom copper annular ring (pad_bot) - large contact has no bottom pad
3D: add 300um solder-ball ring (top+bottom) per John's adom-solder-ball-layer-standard, matching the mpins
Docs: large is mechanical on base scaffold / electromechanical elsewhere; grid 8mm (32mm common); rating 80% derated; s…
revert viewer test fields
test: viewer showGround override candidates
3D: show contact seated in transparent FR4 board with copper pads (insertion view, matches pin pages)
Detailed contact page: usage, ratings, dims, press-fit + Fusion lbr
Initial commit: component/machinecontactlarge