Add XML docs required by CommentChecker fixes

tests/ZB.MOM.WW.CBDDC.Network.Tests/MultiDatasetRegistrationTests.cs

@@ -6,6 +6,9 @@ namespace ZB.MOM.WW.CBDDC.Network.Tests;
 
 public class MultiDatasetRegistrationTests
 {
+    /// <summary>
+    ///     Verifies CBDDC network registration replaces the default orchestrator with multi-dataset wiring.
+    /// </summary>
     [Fact]
     public void AddCBDDCMultiDataset_ShouldRegisterCoordinatorAndReplaceSyncOrchestrator()
     {
@@ -28,12 +31,18 @@ public class MultiDatasetRegistrationTests
 
     private sealed class TestPeerNodeConfigurationProvider : IPeerNodeConfigurationProvider
     {
+        /// <summary>
+        ///     Raised when the peer configuration changes.
+        /// </summary>
         public event PeerNodeConfigurationChangedEventHandler? ConfigurationChanged
         {
             add { }
             remove { }
         }
 
+        /// <summary>
+        ///     Returns the current peer configuration.
+        /// </summary>
         public Task<PeerNodeConfiguration> GetConfiguration()
         {
             return Task.FromResult(new PeerNodeConfiguration