fix: set project on mail queue in session mails listener

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

src/Appwrite/Bus/Listeners/Mails.php

@@ -137,6 +137,7 @@ class Mails extends Listener
         }
 
         $queueForMails
+            ->setProject($project)
             ->setSubject($subject)
             ->setPreview($preview)
             ->setBody($body)