Update core scanner, parser, SSH client, and UI

index.html

@@ -169,6 +169,9 @@ var Xr=function(e){if(!(this instanceof Xr))return new Xr(e);this.id="Thenable/1
   }
   .btn-primary:hover { background: #3a7de8; }
   .btn-primary:disabled { background: var(--surface2); color: var(--text-dim); cursor: not-allowed; }
+  .btn-danger { background: #c0392b; color: white; }
+  .btn-danger:hover { background: #e74c3c; }
+  .btn-danger:disabled { background: var(--surface2); color: var(--text-dim); cursor: not-allowed; }
 
   .btn-sm {
     padding: 5px 10px;
@@ -435,6 +438,12 @@ var Xr=function(e){if(!(this instanceof Xr))return new Xr(e);this.id="Thenable/1
     <svg width="14" height="14" fill="none" stroke="currentColor" stroke-width="2.5" viewBox="0 0 24 24"><path d="M12 2C6 2 2 7 2 12s4 10 10 10 10-4.5 10-10S18 2 12 2zm0 4c1.1 0 2 .9 2 2s-.9 2-2 2-2-.9-2-2 .9-2 2-2zm4 12H8v-1c0-2.7 5.3-4 8-4v5z"/></svg>
     Scan GW
   </button>
+  <button class="btn btn-danger" id="clearScanBtn" onclick="clearAndRescan()">
+    <svg width="14" height="14" fill="none" stroke="currentColor" stroke-width="2.5" viewBox="0 0 24 24">
+      <polyline points="3 6 5 6 21 6"/><path d="M19 6l-1 14H6L5 6"/><path d="M10 11v6m4-6v6"/><path d="M9 6V4h6v2"/>
+    </svg>
+    Clear &amp; Rescan
+  </button>
   </div>
 </header>
 
@@ -724,9 +733,13 @@ function showNodeDetail(data) {
         <span class="detail-val">${data.chassis_id || '—'}</span>
       </div>
       <div class="detail-row">
-        <span class="detail-key">Description</span>
+        <span class="detail-key">Model</span>
         <span class="detail-val">${data.description || '—'}</span>
       </div>
+      <div class="detail-row">
+        <span class="detail-key">Firmware</span>
+        <span class="detail-val">${data.firmware || '—'}</span>
+      </div>
       <div class="detail-row">
         <span class="detail-key">Last Seen</span>
         <span class="detail-val">${data.last_seen || '—'}</span>
@@ -793,6 +806,15 @@ async function clearLayout() {
   await fetch('/api/layout', { method: 'DELETE' });
   alert('Layout cleared.');
 }
+async function clearAndRescan() {
+  if (!confirm('This will delete all switch and link data, then run a full scan. Continue?')) return;
+  const btn = document.getElementById('clearScanBtn');
+  btn.disabled = true;
+  const res = await fetch('/api/scan/clear', { method: 'POST' });
+  if (res.status === 409) { alert('Scan already running'); btn.disabled = false; return; }
+  startPolling();
+}
+
 async function triggerScan(dept) {
   const url = dept === 'elec' ? '/api/scan/elec'
             : dept === 'gw'   ? '/api/scan/gw'
@@ -823,6 +845,7 @@ async function pollStatus() {
       scanBtn.disabled = true;
       document.getElementById('scanElecBtn').disabled = true;
       document.getElementById('scanGwBtn').disabled = true;
+      document.getElementById('clearScanBtn').disabled = true;
       progressWrap.classList.add('visible');
       statusBar.classList.add('visible');
 
@@ -848,6 +871,7 @@ async function pollStatus() {
       scanBtn.disabled = false;
       document.getElementById('scanElecBtn').disabled = false;
       document.getElementById('scanGwBtn').disabled = false;
+      document.getElementById('clearScanBtn').disabled = false;
       progressBar.style.width = '100%';
       setTimeout(() => {
         progressWrap.classList.remove('visible');