fix: escape poe_class in inspector panel for consistency

d.poe_mode was already wrapped in escHtml(); apply same to d.poe_class.

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

templates/inspector.html

@@ -259,7 +259,7 @@ function renderPanel(swName, idx) {
     const poeCurStr = (d.poe_power != null && d.poe_power > 0) ? ` / draw <span class="val-amber">${d.poe_power.toFixed(1)}W</span>` : '';
     poeHtml = `
       <div class="lt-divider"><span class="lt-divider-label">PoE</span></div>
-      <div class="panel-row"><span class="panel-label">Class</span><span class="panel-val">class ${d.poe_class}${poeMaxStr}</span></div>
+      <div class="panel-row"><span class="panel-label">Class</span><span class="panel-val">class ${escHtml(String(d.poe_class))}${poeMaxStr}</span></div>
       ${d.poe_power != null ? `<div class="panel-row"><span class="panel-label">Draw</span><span class="panel-val">${d.poe_power > 0 ? `<span class="val-amber">${d.poe_power.toFixed(1)}W</span>` : '0W'}</span></div>` : ''}
       ${d.poe_mode ? `<div class="panel-row"><span class="panel-label">Mode</span><span class="panel-val">${escHtml(d.poe_mode)}</span></div>` : ''}`;
   }