Dynamic resolved count, host search filter, lt-divider for UniFi section

- db.py: add resolved_24h to get_status_summary() so each /api/status
  poll carries the fresh 24h resolved count
- app.js: wire stat-resolved-val to update from summary.resolved_24h
  so the Resolved 24h card stays accurate after auto-refresh
- index.html: add lt-toolbar/lt-search above host grid for quick
  client-side host filtering by name
- links.html: replace custom unifi-section-header div with lt-divider
- style.css: remove unused .unifi-section-header rules

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

templates/index.html

@@ -208,6 +208,14 @@
   </div>
 
   <!-- Host cards -->
+  <div class="lt-toolbar" style="margin-bottom:10px" id="host-toolbar">
+    <div class="lt-toolbar-left">
+      <div class="lt-search">
+        <input type="search" class="lt-input lt-search-input" id="host-search"
+               placeholder="Filter hosts…" autocomplete="off" style="width:180px">
+      </div>
+    </div>
+  </div>
   <div class="host-grid" id="host-grid">
     {% for name, host in snapshot.hosts.items() %}
     {% set suppressed = suppressions | selectattr('target_name', 'equalto', name) | list %}
@@ -568,6 +576,15 @@
   new MutationObserver(applyEventsFilter)
     .observe(document.getElementById('events-table-wrap'), { childList: true, subtree: true });
 
+  // Host grid search filter
+  document.getElementById('host-search')?.addEventListener('input', function() {
+    const q = this.value.trim().toLowerCase();
+    document.querySelectorAll('#host-grid .host-card').forEach(card => {
+      const name = (card.dataset.host || '').toLowerCase();
+      card.style.display = (!q || name.includes(q)) ? '' : 'none';
+    });
+  });
+
   // Stat card clicks — filter events table by severity
   document.querySelectorAll('.lt-stat-card[data-stat-filter]').forEach(card => {
     card.addEventListener('click', () => {

templates/links.html

@@ -358,7 +358,7 @@ function renderUnifiSwitches(unifiSwitches, dataUpdated) {
       </div>`;
   }).join('');
 
-  return `<div class="unifi-section-header">UNIFI SWITCH PORTS</div>${html}`;
+  return `<div class="lt-divider" style="margin:20px 0 12px"><span class="lt-divider-label" style="color:var(--cyan);letter-spacing:.1em">UNIFI SWITCH PORTS</span></div>${html}`;
 }
 
 // ── Panel collapse / expand ───────────────────────────────────────