feat(otopcua): applier pass to materialise discovered nodes idempotently

src/Core/ZB.MOM.WW.OtOpcUa.Commons/OpcUa/IOpcUaAddressSpaceSink.cs

@@ -84,6 +84,10 @@ public interface IOpcUaAddressSpaceSink
     ///     successful deployment apply so the node manager reflects the new config. Idempotent.
     /// </summary>
     void RebuildAddressSpace();
+
+    /// <summary>Announce that nodes were added at runtime (discovered-node injection) under
+    /// <paramref name="affectedNodeId"/> so subscribed clients refresh their browse (Part 3 GeneralModelChangeEvent, verb NodeAdded).</summary>
+    void RaiseNodesAddedModelChange(string affectedNodeId);
 }
 
 /// <summary>OPC UA status code projection — Good / Uncertain / Bad. Real SDK has finer-grained
@@ -114,4 +118,7 @@ public sealed class NullOpcUaAddressSpaceSink : IOpcUaAddressSpaceSink
 
     /// <inheritdoc />
     public void RebuildAddressSpace() { }
+
+    /// <inheritdoc />
+    public void RaiseNodesAddedModelChange(string affectedNodeId) { }
 }