fix(template-engine): DiffService covers native alarm sources — Deployments diff view no longer blind to native-alarm edits

Claude-Session: https://claude.ai/code/session_01MtdgwpEeCUn6cUA5f1LMPj

src/ZB.MOM.WW.ScadaBridge.Commons/Types/Flattening/ConfigurationDiff.cs

@@ -12,8 +12,8 @@ public sealed record ConfigurationDiff
     public string? OldRevisionHash { get; init; }
     /// <summary>Revision hash of the new configuration being compared.</summary>
     public string? NewRevisionHash { get; init; }
-    /// <summary>True when any attribute, alarm, script, or connection changes are present.</summary>
-    public bool HasChanges => AttributeChanges.Count > 0 || AlarmChanges.Count > 0 || ScriptChanges.Count > 0 || ConnectionChanges.Count > 0;
+    /// <summary>True when any attribute, alarm, script, native alarm source, or connection changes are present.</summary>
+    public bool HasChanges => AttributeChanges.Count > 0 || AlarmChanges.Count > 0 || ScriptChanges.Count > 0 || NativeAlarmSourceChanges.Count > 0 || ConnectionChanges.Count > 0;
 
     /// <summary>Diff entries for resolved attributes.</summary>
     public IReadOnlyList<DiffEntry<ResolvedAttribute>> AttributeChanges { get; init; } = [];
@@ -22,6 +22,13 @@ public sealed record ConfigurationDiff
     /// <summary>Diff entries for resolved scripts.</summary>
     public IReadOnlyList<DiffEntry<ResolvedScript>> ScriptChanges { get; init; } = [];
 
+    /// <summary>
+    /// Diff entries for resolved native alarm source bindings, keyed by canonical
+    /// name. Surfaces native-alarm-source edits (connection, source reference,
+    /// condition filter, lock state) in the Deployments diff view.
+    /// </summary>
+    public IReadOnlyList<DiffEntry<ResolvedNativeAlarmSource>> NativeAlarmSourceChanges { get; init; } = [];
+
     /// <summary>
     /// Diff entries for connection configurations, keyed by connection name.
     /// Surfaces standalone endpoint/protocol/failover drift that does not show