Product texts: mapping completed; product model: solutions + resources

Two work packages, one deploy.

Workbook field mapping completed (2026-09-18)
- highlights <- g:Technical Highlight (new spec-row component of the
  full agency delivery; composeGroup() is generic, no change needed)
- applications <- g:Why Choose Card (benefit cards as one block)
- seometa <- new composed source x:seometa (Introduction body trimmed
  at a word boundary to ~155 chars - the SEO sheet ships no meta
  description, a trimmed intro beats an empty tag)
- teaser stays the hero one-liner, settling the varchar(255) question
- fix: "Save mapping" now merges over the stored mapping instead of
  overwriting it - an empty dropdown no longer wipes a stored selector

Product model: solutions relation and Resources tab (2026-09-24)
- closes the gaps the full workbook walkthrough exposed (rows the
  import deliberately skips because the model had no place for them)
- solutions: MM multi select to tx_vitec_domain_model_solution
  (tx_vitec_product_solution_mm, relatedprodukt pattern), emitted by
  both product renderers as solution cards in the shared shape
- Resources tab: inline child table tx_vitec_product_resource - per
  entry a type (documentation/support), an editable card title/text,
  an icon (free text with a value-picker seed set) and one link
  (page/url/file/record via the link wizard). Deliberately no Extbase
  model: only the UserFunc path reads the rows.
- datasheets: own MM selection of download records below the resource
  list (tx_vitec_product_datasheet_mm); emitted into the SAME
  resources envelope as ready-made type=datasheet cards (title/teaser/
  icon from the record, url = the public /download/<slug> route, uid
  fallback - private/hidden downloads 404 as everywhere)
- JSON `resources` (detail payload only, like heroimage): list envelope
  {layout, items[]}; a hand-written card whose link is empty or
  unresolvable is not emitted; layout switches to carousel above three
  cards in total
- solutions hybrid (same day, after analysing all 100 workbooks: their
  Solution Cards reference the 8 GROUPS in 98% of cases): new is_group
  flag on the solution model, new idempotent CLI
  vitec:create-solution-groups (8 group records; title source is
  AlignSolutionsCommand::TARGET - now public -, category = the group's
  own category, detail_page = the /solutions group page with -N
  disambiguation). Group records are invisible to the solution list
  and to vitec:align-solutions and only selectable in the product
  relation; product solution cards carry isGroup
- spec raised to v1.18 (7.15 member table, 7.13.3 note, revision row;
  the footer had been stuck at v1.15 since 1.16/1.17)

Requires on the server:
    vendor/bin/typo3 database:updateschema "*.add,*.change"
    vendor/bin/typo3 cache:flush

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

packages/vitec/Classes/UserFunc/ProductShowJsonRenderer.php

@@ -771,6 +771,7 @@ class ProductShowJsonRenderer
                 'teaser' => (string)($solutionRow['teaser'] ?? ''),
                 'description' => \Evomedien\Vitec\Service\RteResolver::html($solutionRow['description'] ?? ''),
                 'detailUrl' => \Evomedien\Vitec\Service\LinkResolver::pageUrl((int)($solutionRow['detail_page'] ?? 0)),
+                'isGroup' => (bool)($solutionRow['is_group'] ?? false),
                 'image' => $serializer->image($solutionUid, 'image', 'tx_vitec_domain_model_solution', true),
             ];
         }
@@ -817,6 +818,37 @@ class ProductShowJsonRenderer
             ];
         }
 
+        // Datasheets are their own MM selection of download records and join
+        // the same envelope as ready-made cards: url is the public forced-
+        // download route (slug route since 2026-08-21, uid route as
+        // fallback), so the DownloadFileResolver rules apply unchanged -
+        // a private or hidden download simply 404s.
+        $datasheetQueryBuilder = GeneralUtility::makeInstance(\TYPO3\CMS\Core\Database\ConnectionPool::class)
+            ->getQueryBuilderForTable('tx_vitec_domain_model_download');
+        $datasheetRows = $datasheetQueryBuilder
+            ->select('d.uid', 'd.title', 'd.slug', 'd.teaser', 'd.icon')
+            ->from('tx_vitec_domain_model_download', 'd')
+            ->join('d', 'tx_vitec_product_datasheet_mm', 'mm', 'mm.uid_foreign = d.uid')
+            ->where(
+                $datasheetQueryBuilder->expr()->eq('mm.uid_local', $datasheetQueryBuilder->createNamedParameter($productUid, \Doctrine\DBAL\ParameterType::INTEGER)),
+                $datasheetQueryBuilder->expr()->eq('d.deleted', 0),
+                $datasheetQueryBuilder->expr()->eq('d.hidden', 0)
+            )
+            ->orderBy('mm.sorting', 'ASC')
+            ->executeQuery()
+            ->fetchAllAssociative();
+
+        foreach ($datasheetRows as $datasheetRow) {
+            $slug = trim((string)($datasheetRow['slug'] ?? ''), "/ ");
+            $items[] = [
+                'type' => 'datasheet',
+                'title' => (string)($datasheetRow['title'] ?? ''),
+                'text' => (string)($datasheetRow['teaser'] ?? ''),
+                'icon' => ((string)($datasheetRow['icon'] ?? '')) !== '' ? (string)$datasheetRow['icon'] : 'datasheet',
+                'url' => $slug !== '' ? '/download/' . $slug : '/download/file/' . (int)$datasheetRow['uid'],
+            ];
+        }
+
         return [
             'layout' => count($items) > 3 ? 'carousel' : 'grid',
             'items' => $items,