feat(trending): switch trending endpoints to Ranking V2 ranking_score\n\n- discoverTrending() now sorts by ranking_score:desc + engagement_velocity:desc\n- HomepageService::getTrending() now sorts by ranking_score:desc + velocity\n- DB fallback joins artwork_stats for ranking_score sort\n- Both trending endpoints filter to last 30 days (spec §6)\n- Add created_at to Meilisearch filterableAttributes for date filtering\n- Synced index settings"

app/Services/ArtworkSearchService.php

@@ -249,17 +249,21 @@ final class ArtworkSearchService
     // ── Discover section helpers ───────────────────────────────────────────────
 
     /**
-     * Trending: sorted by pre-computed trending_score_24h (recalculated every 30 min).
-     * Falls back to views:desc if the column is not yet populated.
+     * Trending: sorted by Ranking Engine V2 `ranking_score` (recalculated every 30 min).
+     *
+     * Spec §6: Uses ranking_score, limits to last 30 days,
+     * highlights high-velocity artworks via engagement_velocity tiebreaker.
      */
     public function discoverTrending(int $perPage = 24): LengthAwarePaginator
     {
-        $page = (int) request()->get('page', 1);
-        return Cache::remember("discover.trending.{$page}", self::CACHE_TTL, function () use ($perPage) {
+        $page    = (int) request()->get('page', 1);
+        $cutoff  = now()->subDays(30)->toDateString();
+
+        return Cache::remember("discover.trending.{$page}", self::CACHE_TTL, function () use ($perPage, $cutoff) {
             return Artwork::search('')
                 ->options([
-                    'filter' => self::BASE_FILTER,
-                    'sort'   => ['trending_score_24h:desc', 'trending_score_7d:desc', 'views:desc', 'created_at:desc'],
+                    'filter' => self::BASE_FILTER . ' AND created_at >= "' . $cutoff . '"',
+                    'sort'   => ['ranking_score:desc', 'engagement_velocity:desc', 'views:desc'],
                 ])
                 ->paginate($perPage);
         });