ver. 0.279: Newsletter frontend migration, Languages facade elimination, bug fix newsletter_unsubscribe

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

autoload/admin/App.php

@@ -394,7 +394,8 @@ class App
         global $mdb;
         return new \admin\Controllers\ShopProductController(
           new \Domain\Product\ProductRepository( $mdb ),
-          new \Domain\Integrations\IntegrationsRepository( $mdb )
+          new \Domain\Integrations\IntegrationsRepository( $mdb ),
+          new \Domain\Languages\LanguagesRepository( $mdb )
         );
       },
       'ShopClients' => function() {