Auth: convert auth views and verification email to Nova layout

app/Services/ArtworkService.php

@@ -4,7 +4,6 @@ namespace App\Services;
 use App\Models\Artwork;
 use App\Models\Category;
 use App\Models\ContentType;
-use App\Models\ArtworkFeature;
 use Illuminate\Contracts\Pagination\LengthAwarePaginator;
 use Illuminate\Contracts\Pagination\CursorPaginator;
 use Illuminate\Database\Eloquent\Collection as EloquentCollection;
@@ -220,14 +219,48 @@ class ArtworkService
             }
         }
 
+        $categoryIds = $this->categoryAndDescendantIds($current);
+
         $query = $this->browseQuery($sort)
-            ->whereHas('categories', function ($q) use ($current) {
-                $q->where('categories.id', $current->id);
+            ->whereHas('categories', function ($q) use ($categoryIds) {
+                $q->whereIn('categories.id', $categoryIds);
             });
 
         return $query->cursorPaginate($perPage);
     }
 
+    /**
+     * Collect category id plus all descendant category ids.
+     *
+     * @return array<int, int>
+     */
+    private function categoryAndDescendantIds(Category $category): array
+    {
+        $allIds = [(int) $category->id];
+        $frontier = [(int) $category->id];
+
+        while (! empty($frontier)) {
+            $children = Category::whereIn('parent_id', $frontier)
+                ->pluck('id')
+                ->map(static fn ($id): int => (int) $id)
+                ->all();
+
+            if (empty($children)) {
+                break;
+            }
+
+            $newIds = array_values(array_diff($children, $allIds));
+            if (empty($newIds)) {
+                break;
+            }
+
+            $allIds = array_values(array_unique(array_merge($allIds, $newIds)));
+            $frontier = $newIds;
+        }
+
+        return $allIds;
+    }
+
     /**
      * Get featured artworks ordered by featured_at DESC, optionally filtered by type.
      * Uses artwork_features table and applies public/approved/published filters.