Collection: QA - PLP Redesign 4292

QA-only collection for the #4292 PLP redesign. Curated to exercise product-card, quick-add drawer and filter states on one PLP: text/image badges, sale & compare-at pricing, promo lines, multi-option sibling groups, low stock, back-soon/Notify Me, and a multi-variant product. Do not merchandise — safe to delete after QA.