fix(adminui): refresh stale F9 stub copy on /alerts page

ScriptedAlarmActor (Runtime/ScriptedAlarms) shipped a while back — the
"Engine wiring (F9 ScriptedAlarmActor) is pending" stub message was
misleading. Also drop the matching "(F9)" / "(future)" parentheticals
in the intro panel and frame the empty state as a current-window
condition, not a missing feature.

src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Components/Pages/Alerts.razor

@@ -1,7 +1,7 @@
 @page "/alerts"
 @* Live alarm tail via SignalR. Subscribes to /hubs/alerts and shows the most-recent
-   AlarmTransitionEvent entries. Engine wiring (ScriptedAlarmActor publish on the `alerts`
-   topic) lands with F9; until then the connection stays open and the table is empty. *@
+   AlarmTransitionEvent entries published by ScriptedAlarmActor (Runtime/ScriptedAlarms)
+   and the AB CIP ALMD bridge. *@
 @attribute [Microsoft.AspNetCore.Authorization.Authorize]
 @rendermode RenderMode.InteractiveServer
 @using Microsoft.AspNetCore.SignalR.Client
@@ -23,14 +23,14 @@
 <section class="panel notice rise" style="animation-delay:.02s">
     Live alarm transitions from the cluster's <span class="mono">alerts</span> DPS topic. Shows
     the most-recent @Capacity entries since the page opened; reload for a fresh window. Sources:
-    ScriptedAlarmActor, native AB CIP ALMD bridge (F9), Galaxy alarm bridge (future).
+    ScriptedAlarmActor, native driver alarm bridges (AB CIP ALMD, Galaxy where wired).
 </section>
 
 @if (_rows.Count == 0)
 {
     <section class="panel notice rise mt-3" style="animation-delay:.08s">
-        No alarms yet. Engine wiring (F9 ScriptedAlarmActor) is pending; once it ships the table
-        below will start populating in real time.
+        No alarms in the current window. The table will populate as soon as a
+        ScriptedAlarmActor or driver alarm bridge publishes a transition.
     </section>
 }
 else