schedule explicit set levels

backend/app/Set/UseCases/GetSetLayout/SetLayout.php

@@ -7,10 +7,12 @@ use App\Set\Set;
 final readonly class SetLayout
 {
     /**
+     * @param list<SetLayoutLevel> $levels
      * @param list<ElementLayoutNode> $elements
      */
     public function __construct(
         private Set $set,
+        private array $levels,
         private array $elements,
     ) {}
 
@@ -19,6 +21,14 @@ final readonly class SetLayout
         return $this->set;
     }
 
+    /**
+     * @return list<SetLayoutLevel>
+     */
+    public function getLevels(): array
+    {
+        return $this->levels;
+    }
+
     /**
      * @return list<ElementLayoutNode>
      */