Add categoryIds to article.listSearchIndex response

src/sql/article.js

@@ -187,7 +187,14 @@ SELECT
         WHERE ae.article_id = a.id
         ORDER BY ae.ean
         FOR JSON PATH
-    ) AS eansJson
+    ) AS eansJson,
+    (
+        SELECT ca2.category_id
+        FROM categoryarticle ca2
+        WHERE ca2.article_id = a.id
+        ORDER BY ca2.category_id
+        FOR JSON PATH
+    ) AS categoryIdsJson
 FROM article a
 LEFT JOIN articletext at
     ON at.article_id = a.id AND at.language_id = @languageId