Megamenu: rail display for page trees, cache tags, editorial promo boxes

- Page-tree entries get a "Page tree display" field (columns | rail |
  rail-compact), emitted as display + cardSize: Markets and Solutions
  show their main pages as a list and the sub-pages as image cards on
  hover. Page-tree items carry image (page media) and teaser (abstract)
  from stage 2. Additive; front ends ignoring display render columns.
- vitec:attach-page-media gains --depth=2 and falls back to the page's
  hero background before the grey placeholder; the 39 sub-solution
  pages got their hero image as page media.
- MegamenuJsonRenderer tags every page carrying the menu with the menu
  tables and tt_content_<uid>, so saving menu records refreshes all
  pages instead of waiting for a full flush.
- Products catalog: drop catalog.news; both promo boxes ("Product
  highlight", "Product news") are the entry's editorial teaser cards.
  ProvideInsightsSpotlight back to its previous state.
- Spec v1.29 and v1.30 (header version corrected), README.

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

packages/evo_megamenu_json/Classes/Service/MenuBuilder.php

@@ -136,6 +136,19 @@ final class MenuBuilder
             'columns' => $columns,
         ];
 
+        // Page-tree display (2026-11-02): same columns, two presentations -
+        // `columns` side by side, or `rail`: the columns as a list on the
+        // left, the hovered column's items as image cards on the right
+        // (`cardSize` regular|compact). Additive: a front end that does not
+        // know `display` keeps rendering columns.
+        if ($layout === 'pagetree') {
+            $display = (string)($entry['tree_display'] ?? 'columns');
+            $built['display'] = str_starts_with($display, 'rail') ? 'rail' : 'columns';
+            if ($built['display'] === 'rail') {
+                $built['cardSize'] = $display === 'rail-compact' ? 'compact' : 'regular';
+            }
+        }
+
         // Catalog panels: the teaser cards serve as the featured tiles (left
         // column), the catalog data itself comes from a listener of
         // BuildCatalogEvent - this extension does not know the data source.
@@ -229,10 +242,20 @@ final class MenuBuilder
         foreach ($this->pageRepository->getMenu($rootUid, '*', 'sorting', self::NAV_WHERE) as $child) {
             $items = [];
             foreach ($this->pageRepository->getMenu((int)$child['uid'], '*', 'sorting', self::NAV_WHERE) as $grandchild) {
-                $items[] = [
+                $item = [
                     'title' => (string)(($grandchild['nav_title'] ?? '') !== '' ? $grandchild['nav_title'] : $grandchild['title']),
                     'link' => $this->url('t3://page?uid=' . (int)$grandchild['uid'], $cObj),
                 ];
+                // card data for the `rail` display (2026-11-02), same rules
+                // as the spotlight nav: abstract as teaser, page media image
+                if ($stage >= 2) {
+                    $teaser = trim((string)($grandchild['abstract'] ?? ''));
+                    if ($teaser !== '') {
+                        $item['teaser'] = $teaser;
+                    }
+                    $item['image'] = $this->image('pages', 'media', (int)$grandchild['uid']);
+                }
+                $items[] = $item;
             }
             $column = [
                 'title' => (string)(($child['nav_title'] ?? '') !== '' ? $child['nav_title'] : $child['title']),