VITEC headless: ContentElementResolver, Product fields (videofile, showdatapath)

- New Classes/Service/ContentElementResolver.php: parses TYPO3 typolink
  (t3://record?identifier=tt_content&uid=N, t3://page?uid=P#N, plain numeric)
  to a normalised tt_content envelope ({id,type,colPos,sorting,appearance,
  data}), recursively resolving any nested VITEC list-plugin children.
- ProductListJsonRenderer / ProductShowJsonRenderer: contentelement and
  contentelementcta now emit the resolved object instead of the raw
  typolink string (breaking change at those two keys).
- Product model: new field videofile (FAL, single video upload in tab
  Images and Videos, mp4/webm/ogv/mov/m4v); new bool field showdatapath
  (toggle at end of General tab, controls the "Datapath is now Vitec"
  graphic in the frontend). ext_tables.sql, TCA, model property +
  getter/setter, and both renderers updated accordingly.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

packages/vitec/Configuration/TCA/tx_vitec_domain_model_product.php

@@ -23,9 +23,9 @@ return [
         ],
     ],
     'types' => [
-        '1' => ['showitem' => 'title, subtitle, slug, teaser, description, applications, highlights, contentelement, contentelementcta, downloads,
+        '1' => ['showitem' => 'title, subtitle, slug, teaser, description, applications, highlights, contentelement, contentelementcta, downloads, showdatapath,
                                 --div--;SEO, seotitle, urltitle, seometa, keywords, structureddata,
-                                --div--;Images and Videos, productimage, ogimage, video, 
+                                --div--;Images and Videos, productimage, ogimage, video, videofile, 
                                 --div--;LLL:EXT:core/Resources/Private/Language/Form/locallang_tabs.xlf:categories, categories,
                                 --div--;Visibility, hideonapp, hideonwebsite, hideondatasheets, hideonproducts, shortcut, shortcutpid,
                                 --div--;Misc, legacy, supportproduct, subproduct, relatedprodukt,
@@ -496,6 +496,52 @@ return [
         ],
     ],    
 
+    'videofile' => [
+        'exclude' => true,
+        'label' => 'Video File (Upload or Local)',
+        'config' => [
+            'type' => 'inline',
+            'foreign_table' => 'sys_file_reference',
+            'foreign_field' => 'uid_foreign',
+            'foreign_sortby' => 'sorting_foreign',
+            'foreign_table_field' => 'tablenames',
+            'foreign_match_fields' => [
+                'fieldname' => 'videofile',
+            ],
+            'appearance' => [
+                'collapseAll' => true,
+                'levelLinksPosition' => 'top',
+                'showSynchronizationLink' => true,
+                'showPossibleLocalizationRecords' => true,
+                'showAllLocalizationLink' => true,
+            ],
+            'behaviour' => [
+                'allowLanguageSynchronization' => true,
+            ],
+            'filter' => [
+                [
+                    'userFunc' => \TYPO3\CMS\Core\Resource\Filter\FileExtensionFilter::class . '->filterInlineChildren',
+                    'parameters' => [
+                        'allowedFileExtensions' => 'mp4,webm,ogv,mov,m4v',
+                    ],
+                ],
+            ],
+            'maxitems' => 1,
+            'minitems' => 0,
+        ],
+    ],
+
+    'showdatapath' => [
+        'exclude' => true,
+        'label' => "Show 'Datapath is now Vitec' graphic",
+        'description' => "Toggle the 'Datapath is now Vitec' graphic on this product in the frontend.",
+        'config' => [
+            'type' => 'check',
+            'renderType' => 'checkboxToggle',
+            'default' => 0,
+        ],
+    ],
+
     'contentelement' => [
         'exclude' => true,
         'label' => 'Select Content Element for Key Features Section',
@@ -538,4 +584,4 @@ return [
              
 /* ----------------------------------------------------- */    
     ],
-];
+];