Product detail: resources section layout 3 "Hardware option"

- The Resources Section Layout select gained a third value, hardware
  ("Layout 3 - Hardware option"): Technical Highlights spread over two
  columns, no resource cards
- ProductShowJsonRenderer::resourcesBand() emits the same envelope with
  items: [] for hardware even when cards are maintained, so the cards
  stay on the product and reappear when switching back to layout 1 or 2
- Spec v1.27 (resources.sectionLayout values)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

packages/vitec/Classes/UserFunc/ProductShowJsonRenderer.php

@@ -255,12 +255,7 @@ class ProductShowJsonRenderer
             'solutions' => $this->getProductSolutions($uid),
             // Detail-only like heroimage: resource cards are detail-page
             // furniture a list never shows.
-            'resources' => array_merge(
-                $this->getProductResources($uid),
-                // Section layout (customer CR 2026-10-26): how the front end
-                // arranges the Technical Highlights / Resources band.
-                ['sectionLayout' => (string)(($product['resources_layout'] ?? '') ?: '50-50')]
-            ),
+            'resources' => $this->resourcesBand($uid, (string)(($product['resources_layout'] ?? '') ?: '50-50')),
         ];
 
         // schema.org JSON-LD (Product + optional VideoObject) as a ready-to-emit
@@ -792,6 +787,25 @@ class ProductShowJsonRenderer
      * whose link is empty or unresolvable is dropped (decision 2026-09-24).
      * List envelope: `layout` switches to `carousel` above three cards.
      */
+    /**
+     * The Technical Highlights / Resources band: resource cards plus the
+     * section layout (customer CR 2026-10-26) that tells the front end how to
+     * arrange the band. Layout `hardware` (2026-11-02) spreads the highlights
+     * over two columns WITHOUT resources - the cards are not emitted at all
+     * (same envelope, empty items), while the maintained records stay in the
+     * product for a switch back.
+     *
+     * @return array{layout:string,items:array<int,array<string,mixed>>,sectionLayout:string}
+     */
+    protected function resourcesBand(int $productUid, string $sectionLayout): array
+    {
+        $band = $sectionLayout === 'hardware'
+            ? ['layout' => 'grid', 'items' => []]
+            : $this->getProductResources($productUid);
+        $band['sectionLayout'] = $sectionLayout;
+        return $band;
+    }
+
     protected function getProductResources(int $productUid): array
     {
         $queryBuilder = GeneralUtility::makeInstance(\TYPO3\CMS\Core\Database\ConnectionPool::class)