docs(dcl): sweep ns= examples to durable nsu= form (v3 cutover #14)

src/ZB.MOM.WW.ScadaBridge.Commons/Interfaces/Protocol/IBrowsableDataConnection.cs

@@ -33,7 +33,7 @@ public record BrowseChildrenResult(
     bool Truncated,
     string? ContinuationToken = null);
 
-/// <param name="NodeId">Server-issued node identifier (e.g. <c>"ns=2;s=Devices.Pump1.Speed"</c>).</param>
+/// <param name="NodeId">Server-issued node identifier (e.g. <c>"nsu=https://server/ns;s=Devices.Pump1.Speed"</c>).</param>
 /// <param name="DisplayName">Human-readable display name from the server's DisplayName attribute.</param>
 /// <param name="NodeClass">Classifies the node for UI purposes (Variable rows are selectable; Object rows are navigable).</param>
 /// <param name="HasChildren">Hint so the UI can render an expand chevron without a second roundtrip.</param>

src/ZB.MOM.WW.ScadaBridge.DataConnectionLayer/Adapters/OpcUaDataConnection.cs

@@ -12,7 +12,8 @@ namespace ZB.MOM.WW.ScadaBridge.DataConnectionLayer.Adapters;
 /// Maps IDataConnection methods to OPC UA concepts via IOpcUaClient abstraction.
 ///
 /// OPC UA mapping:
-/// - TagPath → NodeId (e.g., "ns=2;s=MyDevice.Temperature")
+/// - TagPath → NodeId (durable form, e.g. "nsu=https://server/ns;s=MyDevice.Temperature";
+///   the legacy "ns=2;s=..." index form is still accepted — see OpcUaNodeReference)
 /// - Subscribe → MonitoredItem with DataChangeNotification
 /// - Read/Write → Read/Write service calls
 /// - Quality → OPC UA StatusCode mapping