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

routes/web.php

@@ -45,6 +45,9 @@ Route::prefix('discover')->name('discover.')->group(function () {
 
     // Artworks from people you follow (auth required)
     Route::middleware('auth')->get('/following', [DiscoverController::class, 'following'])->name('following');
+
+    // Personalised "For You" feed (auth required; guests → redirect)
+    Route::middleware('auth')->get('/for-you', [DiscoverController::class, 'forYou'])->name('for-you');
 });
 
 // ── CREATORS routes (/creators/*) ─────────────────────────────────────────────