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/datasheet), editable card title
  and text, an icon (free text with a value-picker seed set) and one
  link (page/url/file/record via the link wizard, so the Download tab
  works too). Deliberately no Extbase model: only the UserFunc path
  reads the rows.
- JSON `resources` (detail payload only, like heroimage): list envelope
  {layout, items[]}; a card whose link is empty or unresolvable is not
  emitted; layout switches to carousel above three cards
- spec raised to v1.18 (7.15 member table, 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/Import/ProductXlsxReader.php

@@ -227,6 +227,10 @@ final class ProductXlsxReader
         if ($seoTitle !== null) {
             $groups['Composed'][] = $this->entry('x:seotitle', 'Hero title — Intro heading (SEO title)', $seoTitle);
         }
+        $seoMeta = $this->composeSeoMeta($parsed);
+        if ($seoMeta !== null) {
+            $groups['Composed'][] = $this->entry('x:seometa', 'Introduction body, trimmed to ~155 chars (meta description)', $seoMeta);
+        }
 
         foreach ($parsed['seo'] ?? [] as $header => $value) {
             $groups['Page SEO Check'][] = $this->entry('s:' . $header, 'SEO · ' . $header, (string)$value);
@@ -262,6 +266,9 @@ final class ProductXlsxReader
         if ($selector === 'x:seotitle') {
             return $this->composeSeoTitle($parsed);
         }
+        if ($selector === 'x:seometa') {
+            return $this->composeSeoMeta($parsed);
+        }
         if (str_starts_with($selector, 's:')) {
             $value = $parsed['seo'][substr($selector, 2)] ?? null;
             return is_string($value) && $value !== '' ? $value : null;
@@ -310,6 +317,37 @@ final class ProductXlsxReader
         return $hero . ' — ' . $intro;
     }
 
+    /**
+     * Meta description from the Product Introduction body: plain text,
+     * whitespace collapsed, cut at a word boundary to the customary ~155
+     * characters with an ellipsis. Decision 2026-09-18: composed here because
+     * the SEO sheet still ships no meta description at all - a trimmed intro
+     * beats an empty tag at go-live, and the editor can always overwrite.
+     */
+    private function composeSeoMeta(array $parsed): ?string
+    {
+        foreach ($parsed['components'] ?? [] as $component) {
+            if ((string)($component['component'] ?? '') === 'Product Introduction'
+                && (int)($component['occurrence'] ?? 1) === 1
+            ) {
+                $text = trim((string)preg_replace('/\s+/u', ' ', strip_tags((string)($component['body'] ?? ''))));
+                if ($text === '') {
+                    return null;
+                }
+                if (mb_strlen($text) <= 155) {
+                    return $text;
+                }
+                $cut = mb_substr($text, 0, 152);
+                $lastSpace = mb_strrpos($cut, ' ');
+                if ($lastSpace !== false && $lastSpace > 100) {
+                    $cut = mb_substr($cut, 0, $lastSpace);
+                }
+                return rtrim($cut, " ,;:") . ' …';
+            }
+        }
+        return null;
+    }
+
     /**
      * One component row as a heading/paragraph pair. The markup - centred h3
      * with an inner span, centred p - is copied verbatim from what the