clean up stage 1

src/app/pages/item-detail/item-detail.component.html

@@ -1,4 +1,4 @@
-@if (isnovo) {
+@if (isMarketplaceNovo) {
   <!-- novo VERSION - Modern Design -->
   <div class="novo-item-container">
     @if (loading()) {

src/app/pages/item-detail/item-detail.component.ts

@@ -28,8 +28,8 @@ export class ItemDetailComponent implements OnInit, OnDestroy {
   error = signal<string | null>(null);
   private readonly uiRuntime = inject(UiRuntimeFacade);
 
-  get isnovo(): boolean {
-    return this.uiRuntime.isNovo();
+  get isMarketplaceNovo(): boolean {
+    return this.uiRuntime.isMarketplaceVariant('novo');
   }
 
   // Variant selection