fix(m9/T26a): HiLo per-setpoint merge in resolver (preview=deploy) + widen staleness comparison

src/ZB.MOM.WW.ScadaBridge.Commons/Messages/Management/ResolvedTemplateMembers.cs

@@ -93,6 +93,16 @@ public sealed record ResolvedTemplateMemberInfo
     /// no single scalar value.
     /// </summary>
     public string? EffectiveValue { get; init; }
+
+    /// <summary>
+    /// For ALARM members only: the effective (inheritance-resolved) trigger
+    /// configuration JSON — for HiLo alarms this is the per-setpoint MERGED
+    /// config (a derived template overriding only <c>hi</c> inherits the base
+    /// <c>lo</c>), identical to what the flattener produces on deploy, so the
+    /// editor can render the effective HiLo thresholds. Null for non-alarm
+    /// members and for alarms with no trigger configuration.
+    /// </summary>
+    public string? EffectiveTriggerConfiguration { get; init; }
 }
 
 /// <summary>