Add XML docs required by CommentChecker fixes

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

@@ -7,6 +7,9 @@ namespace ZB.MOM.WW.CBDDC.Network.Tests;
 
 public class MultiDatasetSyncOrchestratorTests
 {
+    /// <summary>
+    ///     Verifies multi-dataset sync is disabled, only the primary context is created.
+    /// </summary>
     [Fact]
     public void Constructor_WhenMultiDatasetDisabled_ShouldOnlyCreatePrimaryContext()
     {
@@ -27,6 +30,9 @@ public class MultiDatasetSyncOrchestratorTests
         datasetIds[0].ShouldBe(DatasetId.Primary);
     }
 
+    /// <summary>
+    ///     Verifies that failures in one orchestrator do not prevent remaining contexts from starting and stopping.
+    /// </summary>
     [Fact]
     public async Task StartStop_WhenOneDatasetThrows_ShouldContinueOtherDatasets()
     {
@@ -82,9 +88,19 @@ public class MultiDatasetSyncOrchestratorTests
     private sealed class TrackingSyncOrchestrator(Exception? startException = null, Exception? stopException = null)
         : ISyncOrchestrator
     {
+        /// <summary>
+        ///     Number of times <see cref="Start" /> has been called.
+        /// </summary>
         public int StartCalls { get; private set; }
+
+        /// <summary>
+        ///     Number of times <see cref="Stop" /> has been called.
+        /// </summary>
         public int StopCalls { get; private set; }
 
+        /// <summary>
+        ///     Starts the orchestrator.
+        /// </summary>
         public Task Start()
         {
             StartCalls++;
@@ -92,6 +108,9 @@ public class MultiDatasetSyncOrchestratorTests
             return Task.CompletedTask;
         }
 
+        /// <summary>
+        ///     Stops the orchestrator.
+        /// </summary>
         public Task Stop()
         {
             StopCalls++;