feat(commons): enrich AlarmStateChanged with unified condition state (additive)

src/ZB.MOM.WW.ScadaBridge.Commons/Types/Alarms/AlarmConditionStateFactory.cs

@@ -0,0 +1,16 @@
+using ZB.MOM.WW.ScadaBridge.Commons.Types.Enums;
+
+namespace ZB.MOM.WW.ScadaBridge.Commons.Types.Alarms;
+
+/// <summary>Builds <see cref="AlarmConditionState"/> values for the supported alarm kinds.</summary>
+public static class AlarmConditionStateFactory
+{
+    /// <summary>
+    /// Computed alarms have no native ack/shelve/suppress lifecycle: they are
+    /// auto-acked, never shelved or suppressed, not confirmable, and their
+    /// severity is the configured priority. Active mirrors the alarm State.
+    /// </summary>
+    public static AlarmConditionState ForComputed(AlarmState state, int priority) =>
+        new(Active: state == AlarmState.Active, Acknowledged: true, Confirmed: null,
+            Shelve: AlarmShelveState.Unshelved, Suppressed: false, Severity: priority);
+}