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>

static/app.js

@@ -92,8 +92,10 @@ function updateStatusBar(summary, lastCheck, daemonOk) {
   // Update stat cards
   const scCrit = document.getElementById('stat-critical-val');
   const scWarn = document.getElementById('stat-warning-val');
+  const scRes  = document.getElementById('stat-resolved-val');
   if (scCrit) scCrit.textContent = critCount;
   if (scWarn) scWarn.textContent = warnCount;
+  if (scRes && summary.resolved_24h != null) scRes.textContent = summary.resolved_24h;
   const statCritCard = document.getElementById('stat-critical');
   if (statCritCard) statCritCard.classList.toggle('lt-stat-card--alert', critCount > 0);
 

static/style.css

@@ -706,23 +706,6 @@
 .poe-bar-warn { background: var(--amber); }
 .poe-bar-crit { background: var(--red); }
 
-/* UniFi section divider */
-.unifi-section-header {
-  display: flex;
-  align-items: center;
-  gap: 12px;
-  margin: 24px 0 12px;
-  color: var(--cyan);
-  font-size: .75em;
-  letter-spacing: .1em;
-}
-.unifi-section-header::before,
-.unifi-section-header::after {
-  content: '';
-  flex: 1;
-  height: 1px;
-  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
-}
 
 
 .link-loading { padding: 20px; text-align: center; color: var(--text-muted); font-size: .8em; }