<ul><li>Fixed <code>$page_title_1</code> undefined variable warning in <code>platform/components/foot.php</code> lines 3110 and 3231 — changed bare <code>echo $page_title_1</code> to <code>echo $page_title_1 ?? ''</code></li><li>Confirmed <code>support_modal.php</code> already guards <code>$module_id</code> at line 2</li></ul>