<h4>Admin Instances — Debug + BS5 Modernization</h4>
<p>Full debug on <code>/platform/administration/instances/</code>. Systematic BS3→BS5 conversion across 13 files.</p>
<ul>
<li>Converted <code>btn-default</code> → <code>btn-light</code> across all files</li>
<li>Converted <code>pull-right/pull-left</code> → <code>float-end/float-start</code></li>
<li>Converted <code>label label-*</code> → <code>badge bg-*</code></li>
<li>Converted <code>data-dismiss</code> → <code>data-bs-dismiss</code></li>
<li>Converted <code>panel-heading/panel-body</code> → <code>card-header/card-body</code></li>
<li>Converted <code>form-group</code> → <code>mb-3</code></li>
<li>Fixed 3 BS3 <code>.modal({})</code> calls → <code>bootstrap.Modal.getOrCreateInstance()</code></li>
<li>Zero legacy patterns remaining</li>
<li>Zero PHP/JS errors</li>
</ul>