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/api.php

@@ -292,6 +292,20 @@ Route::middleware(['web', 'auth', 'normalize.username', 'throttle:60,1'])->group
         ->name('api.comments.reactions.toggle');
 });
 
+// ── Personalised suggestions (auth required) ────────────────────────────────
+// GET /api/user/suggestions/creators  → up to 12 suggested creators to follow
+// GET /api/user/suggestions/tags      → up to 20 suggested tags (foundation)
+Route::middleware(['web', 'auth', 'normalize.username', 'throttle:30,1'])
+    ->prefix('user/suggestions')
+    ->name('api.user.suggestions.')
+    ->group(function () {
+        Route::get('creators', \App\Http\Controllers\Api\SuggestedCreatorsController::class)
+            ->name('creators');
+
+        Route::get('tags', \App\Http\Controllers\Api\SuggestedTagsController::class)
+            ->name('tags');
+    });
+
 // ── Follow system ─────────────────────────────────────────────────────────────
 // POST   /api/user/{username}/follow     → follow a user
 // DELETE /api/user/{username}/follow     → unfollow a user