Paginierte/gefilterte Listen: eigener Titel und Description (Page N, Kategorie)

Mit dem selbstreferenzierenden Canonical (07f74e3) zaehlten
/insights/news?page=2 und ?category=... als eigene Seiten mit dem
Titel von Seite 1 (Seobility: 3 doppelte Titel, 2x Duplicate Content).
VitecMetaHandler haengt jetzt ' - Page N' bzw. die Kategorie an Titel
und Description.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

packages/vitec/Classes/Seo/VitecMetaHandler.php

@@ -290,6 +290,31 @@ class VitecMetaHandler extends MetaHandler
                     }
                 }
             }
+            // Self-canonical pages need their own title/description, otherwise
+            // they count as duplicates of page 1 ("VITEC News and Articles" x3).
+            if ($keep !== []) {
+                $suffix = [];
+                if (isset($keep['category'])) {
+                    $suffix[] = ucfirst(str_replace('-', ' ', $keep['category']));
+                }
+                if (isset($keep['page'])) {
+                    $suffix[] = 'Page ' . (int)$keep['page'];
+                }
+                $suffixText = ' – ' . implode(' – ', $suffix);
+                $currentTitle = trim((string)($content['seo']['title'] ?? ''));
+                if ($currentTitle !== '') {
+                    $content['seo']['title'] = preg_match('/^(.*?)(\s*\|\s*VITEC)$/i', $currentTitle, $m) === 1
+                        ? $m[1] . $suffixText . $m[2]
+                        : $currentTitle . $suffixText;
+                }
+                foreach ($content['seo']['meta'] as $index => $entry) {
+                    if (in_array($entry['name'] ?? '', ['description', 'twitter:description'], true)
+                        || ($entry['property'] ?? '') === 'og:description'
+                    ) {
+                        $content['seo']['meta'][$index]['content'] = rtrim((string)$entry['content'], '. ') . $suffixText . '.';
+                    }
+                }
+            }
         }
 
         return $content;