Product text import from agency XLSX workbooks

VITEC Import module: Products tab is now a searchable/sortable product
overview. "Edit Product" opens an XLSX upload with per-field source
mapping (component + cell), old/new preview and checkbox apply via
DataHandler; the mapping and manual matches are persisted and preselect
the next workbook. Category workbooks are detected and rejected.

- new: ProductXlsxReader (PhpSpreadsheet), ProductTextImportController,
  Products/ProductTexts templates, 4 module routes
- related products: per-pair card text in new side table
  tx_vitec_product_related_text (survives MM rewrites), emitted as
  `cardtext` in the product JSON; missing MM relations added add-only
- card copy read from Body Copy (D) with fallback to CTA/Card Copy (E) -
  the workbooks fill either depending on row type
- product detail page <title> now uses seotitle with title fallback
  (provider made singleton and fed from the JSON renderer)
- per-user recent-search badges; last loaded workbook stored per product
  (tx_vitec_product_workbook), Edit Product reopens on it
- composer: add phpoffice/phpspreadsheet ^5.9
- diagnostics: migrations/check_workbook.php

packages/vitec/Classes/UserFunc/ProductListJsonRenderer.php

@@ -205,11 +205,15 @@ class ProductListJsonRenderer
             'subtitle' => (string)($product['subtitle'] ?? ''),
             'video' => (string)($product['video'] ?? ''),
             'applications' => RteResolver::html($product['applications'] ?? ''),
+            'capabilities' => RteResolver::html($product['capabilities'] ?? ''),
             'description' => RteResolver::html($product['description'] ?? ''),
+            'description2' => RteResolver::html($product['description2'] ?? ''),
             'highlights' => RteResolver::html($product['highlights'] ?? ''),
+            'textrelatedproducts' => RteResolver::html($product['textrelatedproducts'] ?? ''),
             'shortcutpid' => (string)($product['shortcutpid'] ?? ''),
             'contentelement' => \Evomedien\Vitec\Service\ContentElementResolver::resolveLink((string)($product['contentelement'] ?? '')),
             'contentelementcta' => \Evomedien\Vitec\Service\ContentElementResolver::resolveLink((string)($product['contentelementcta'] ?? '')),
+            'portfolio' => \Evomedien\Vitec\Service\LinkResolver::typolinkUrl((string)($product['portfolio'] ?? '')),
 
             'hideonapp' => (bool)($product['hideonapp'] ?? false),
             'hideonwebsite' => (bool)($product['hideonwebsite'] ?? false),