feat: add Priority 3 product detail e-commerce macros
New macros in shared/macros/shop/:
- product-gallery.html: Image gallery with thumbnails, zoom, lightbox
- variant-selector.html: Size buttons, color swatches, multi-variant
- product-info.html: Product details with price, rating, stock, badges
- product-tabs.html: Tabbed content (description, specs, reviews)
All components support:
- Dark mode via Tailwind dark: classes
- Alpine.js integration for reactivity
- Responsive design
- Accessible markup
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Samir Boulahtit
487bbc562a