Feature: show suppression status on active alert rows

Active events now carry an is_suppressed boolean (added in api_status()
and the index() route via check_suppressed() against the pre-loaded
suppression list). The events table renders a muted '🔕 sup' badge next
to the severity and dims the entire row (.row-suppressed) so operators
can immediately see which firing alerts are silenced.

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

app.py

@@ -160,6 +160,16 @@ def index():
     last_check = db.get_state('last_check', 'Never')
     snapshot = json.loads(snapshot_raw) if snapshot_raw else {}
     suppressions = db.get_active_suppressions()
+    for ev in events:
+        sup_type = (
+            'unifi_device' if ev.get('event_type') == 'unifi_device_offline'
+            else 'interface' if ev.get('event_type') == 'interface_down'
+            else 'host'
+        )
+        ev['is_suppressed'] = db.check_suppressed(
+            suppressions, sup_type,
+            ev.get('target_name', ''), ev.get('target_detail', '') or '',
+        )
     recent_resolved = db.get_recent_resolved(hours=24, limit=10)
     return render_template(
         'index.html',
@@ -214,6 +224,17 @@ def suppressions_page():
 @require_auth
 def api_status():
     active = db.get_active_events(limit=_PAGE_LIMIT)
+    suppressions = db.get_active_suppressions()
+    for ev in active:
+        sup_type = (
+            'unifi_device' if ev.get('event_type') == 'unifi_device_offline'
+            else 'interface' if ev.get('event_type') == 'interface_down'
+            else 'host'
+        )
+        ev['is_suppressed'] = db.check_suppressed(
+            suppressions, sup_type,
+            ev.get('target_name', ''), ev.get('target_detail', '') or '',
+        )
     last_check = db.get_state('last_check', 'Never')
     return jsonify({
         'summary': db.get_status_summary(),