fix(gallery): fill tall portrait cards to full block width with object-cover crop

- ArtworkCard: add w-full to nova-card-media, use absolute inset-0 on img so
  object-cover fills the max-height capped box instead of collapsing the width
- MasonryGallery.css: add width:100% to media container, position img
  absolutely so top/bottom is cropped rather than leaving dark gaps
- Add React MasonryGallery + ArtworkCard components and entry point
- Add recommendation system: UserRecoProfile model/DTO/migration,
  SuggestedCreatorsController, SuggestedTagsController, Recommendation
  services, config/recommendations.php
- SimilarArtworksController, DiscoverController, HomepageService updates
- Update routes (api + web) and discover/for-you views
- Refresh favicon assets, update vite.config.js

vite.config.js

@@ -12,6 +12,7 @@ export default defineConfig({
                 'resources/js/nova.js',
                 'resources/js/entry-topbar.jsx',
                 'resources/js/entry-search.jsx',
+                'resources/js/entry-masonry-gallery.jsx',
                 'resources/js/upload.jsx',
                 'resources/js/Pages/ArtworkPage.jsx',
                 'resources/js/Pages/Home/HomePage.jsx',