<h4>Settings Users — Debug + Modernization Pass</h4>
<p>Full debug on <code>/platform/settings/users/</code>.</p>
<ul>
<li>Fixed 3 PHP warnings: undefined array keys in classifications.php (active, action, classification_id) — added null coalescing</li>
<li>Fixed JS syntax error caused by PHP warnings outputting into script block</li>
<li>Fixed oversized user avatars: replaced <code>img-circle thumb-sm</code> with <code>rounded-circle</code> + explicit 40x40px sizing</li>
<li>Converted all <code>label label-*</code> → <code>badge bg-*</code> (BS3→BS5) in users.php and members.php</li>
<li>Converted all <code>btn-default</code> → <code>btn-light</code> (BS3→BS5)</li>
<li>Zero PHP errors, zero JS errors after fixes</li>
</ul>