docs: add missing XML doc comments across gateway, worker, and .NET client

Resolves 1113 documentation-completeness gaps flagged by CommentChecker
(MissingReturns, MissingInheritDoc, InheritDocMisused, MissingDoc,
MissingParam, RedundantInheritDoc) so the API surface is fully documented
and the analyzer scan is clean. Doc comments only; no code changes.

clients/dotnet/ZB.MOM.WW.MxGateway.Client/GrpcMxGatewayClientTransport.cs

@@ -10,9 +10,7 @@ internal sealed class GrpcMxGatewayClientTransport(
     MxGatewayClientOptions options,
     MxAccessGateway.MxAccessGatewayClient rawClient) : IMxGatewayClientTransport
 {
-    /// <summary>
-    /// Gets the gateway client options.
-    /// </summary>
+    /// <inheritdoc />
     public MxGatewayClientOptions Options { get; } = options;
 
     /// <summary>
@@ -74,7 +72,11 @@ internal sealed class GrpcMxGatewayClientTransport(
         }
     }
 
-    /// <inheritdoc />
+    /// <summary>Streams MXAccess events from the gateway, forwarding an explicit cancellation token to the stream reader.</summary>
+    /// <param name="request">The stream events request.</param>
+    /// <param name="callOptions">gRPC call options.</param>
+    /// <param name="cancellationToken">Token to cancel the streaming enumeration.</param>
+    /// <returns>An async enumerable of MXAccess events.</returns>
     public async IAsyncEnumerable<MxEvent> StreamEventsAsync(
         StreamEventsRequest request,
         CallOptions callOptions,
@@ -133,7 +135,11 @@ internal sealed class GrpcMxGatewayClientTransport(
         }
     }
 
-    /// <inheritdoc />
+    /// <summary>Queries active alarms from the gateway, forwarding an explicit cancellation token to the stream reader.</summary>
+    /// <param name="request">The query active alarms request.</param>
+    /// <param name="callOptions">gRPC call options.</param>
+    /// <param name="cancellationToken">Token to cancel the streaming enumeration.</param>
+    /// <returns>An async enumerable of active alarm snapshots.</returns>
     public async IAsyncEnumerable<ActiveAlarmSnapshot> QueryActiveAlarmsAsync(
         QueryActiveAlarmsRequest request,
         CallOptions callOptions,
@@ -175,7 +181,11 @@ internal sealed class GrpcMxGatewayClientTransport(
         return QueryActiveAlarmsAsync(request, callOptions);
     }
 
-    /// <inheritdoc />
+    /// <summary>Streams alarm feed messages from the gateway, forwarding an explicit cancellation token to the stream reader.</summary>
+    /// <param name="request">The stream alarms request.</param>
+    /// <param name="callOptions">gRPC call options.</param>
+    /// <param name="cancellationToken">Token to cancel the streaming enumeration.</param>
+    /// <returns>An async enumerable of alarm feed messages.</returns>
     public async IAsyncEnumerable<AlarmFeedMessage> StreamAlarmsAsync(
         StreamAlarmsRequest request,
         CallOptions callOptions,