Success-story migration + new plugins + JSON/UX polish

- Success Stories: full migration from old site (48/48, audited),
  markets n:n, quotation content block, columns content block,
  pretty SEO detail URLs via SuccessStoryPathRewrite middleware,
  list/detail split (list page 4 / story page), detailUrl/backUrl
- New plugins: VITEC Locations (grid/list/map + RTE map text),
  VITEC Customer Logos (color/bw logic, only-show-selected),
  VITEC Card (one plugin for product/story/market/solution
  with reloading FlexForm + custom backend preview renderer)
- Eventlist: layout dropdown (list/grid/teaserbar) in settings
- Hero section CB: Images/Video tabs, background video + overlay
- Product JSON: full category rootline (parents), fixed missing
  ConnectionPool import (all-products crash), category tree map
- Backend preview CSS: container-query responsive (narrow columns)
- Docs: ISO architecture spec, root + extension READMEs

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

packages/vitec/Classes/UserFunc/ProductListJsonRenderer.php

@@ -11,6 +11,7 @@ use Evomedien\Vitec\Domain\Repository\ProductRepository;
 use Psr\Http\Message\ServerRequestInterface;
 use TYPO3\CMS\Core\Core\Environment;
 use TYPO3\CMS\Core\Database\Connection;
+use TYPO3\CMS\Core\Database\ConnectionPool;
 use TYPO3\CMS\Core\Imaging\ImageManipulation\CropVariantCollection;
 use TYPO3\CMS\Core\Resource\FileReference;
 use TYPO3\CMS\Core\Resource\ResourceFactory;
@@ -406,15 +407,61 @@ class ProductListJsonRenderer
             ->executeQuery()
             ->fetchAllAssociative();
 
-        return array_map(static function ($cat) {
+        return array_map(function ($cat) {
             return [
                 'uid' => (int)$cat['uid'],
                 'title' => $cat['title'] ?? '',
                 'description' => $cat['description'] ?? '',
+                'parents' => $this->getCategoryParents((int)$cat['uid']),
             ];
         }, $categories);
     }
 
+    /** @var array<int,array{parent:int,title:string}>|null Lazy uid => [parent,title] map of all categories. */
+    private ?array $categoryTreeMap = null;
+
+    /**
+     * All ancestor categories of one category, ROOT FIRST (excluding itself).
+     * Backed by a once-per-request map of sys_category — cheap for any number
+     * of products. Cycle-safe.
+     *
+     * @return array<int,array{uid:int,title:string}>
+     */
+    private function getCategoryParents(int $categoryUid): array
+    {
+        if ($this->categoryTreeMap === null) {
+            $qb = GeneralUtility::makeInstance(ConnectionPool::class)
+                ->getQueryBuilderForTable('sys_category');
+            $rows = $qb
+                ->select('uid', 'parent', 'title')
+                ->from('sys_category')
+                ->where(
+                    $qb->expr()->eq('deleted', 0),
+                    $qb->expr()->eq('hidden', 0)
+                )
+                ->executeQuery()
+                ->fetchAllAssociative();
+            $this->categoryTreeMap = [];
+            foreach ($rows as $row) {
+                $this->categoryTreeMap[(int)$row['uid']] = [
+                    'parent' => (int)$row['parent'],
+                    'title' => (string)$row['title'],
+                ];
+            }
+        }
+
+        $parents = [];
+        $seen = [$categoryUid => true];
+        $current = $this->categoryTreeMap[$categoryUid]['parent'] ?? 0;
+        while ($current > 0 && isset($this->categoryTreeMap[$current]) && !isset($seen[$current])) {
+            $seen[$current] = true;
+            array_unshift($parents, ['uid' => $current, 'title' => $this->categoryTreeMap[$current]['title']]);
+            $current = $this->categoryTreeMap[$current]['parent'];
+        }
+
+        return $parents;
+    }
+
     private function getDownloadFileType(int $downloadUid): string
     {
         $qb = GeneralUtility::makeInstance(ConnectionPool::class)