docs: backfill XML documentation across 756 files

Adds <summary>, <param>, <typeparam>, and <inheritdoc/> tags to public
members surfaced by commentchecker — resolves 5,847 of 5,869 issues
(99.6%) across three /fixdocs passes.

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/Runtime/GatewayGalaxyAlarmFeed.cs

@@ -37,6 +37,8 @@ internal sealed class GatewayGalaxyAlarmFeed : IGalaxyAlarmFeed
     ///     Opens a <c>StreamAlarms</c> feed. Matches the method group
     ///     <c>MxGatewayClient.StreamAlarmsAsync</c>.
     /// </summary>
+    /// <param name="request">The stream request parameters.</param>
+    /// <param name="cancellationToken">A cancellation token.</param>
     internal delegate IAsyncEnumerable<AlarmFeedMessage> AlarmStreamFactory(
         StreamAlarmsRequest request, CancellationToken cancellationToken);
 
@@ -65,8 +67,15 @@ internal sealed class GatewayGalaxyAlarmFeed : IGalaxyAlarmFeed
     private Task? _loop;
     private bool _disposed;
 
+    /// <summary>Occurs when an alarm transition (raise, acknowledge, clear) is received from the Galaxy feed.</summary>
     public event EventHandler<GalaxyAlarmTransition>? OnAlarmTransition;
 
+    /// <summary>Initializes a new instance of the <see cref="GatewayGalaxyAlarmFeed"/> class.</summary>
+    /// <param name="streamFactory">A factory delegate that opens the alarm stream.</param>
+    /// <param name="logger">An optional logger for diagnostic output.</param>
+    /// <param name="clientName">An optional client name for tagging log entries.</param>
+    /// <param name="alarmFilterPrefix">An optional prefix to filter alarms in the stream.</param>
+    /// <param name="reconnectDelay">An optional delay before reconnecting after a stream fault.</param>
     public GatewayGalaxyAlarmFeed(
         AlarmStreamFactory streamFactory,
         ILogger? logger = null,
@@ -81,6 +90,7 @@ internal sealed class GatewayGalaxyAlarmFeed : IGalaxyAlarmFeed
         _clientTag = new KeyValuePair<string, object?>("galaxy.client", clientName ?? "<unknown>");
     }
 
+    /// <summary>Starts the alarm feed by opening the stream and processing messages in a background task.</summary>
     public void Start()
     {
         ObjectDisposedException.ThrowIf(_disposed, this);
@@ -250,6 +260,7 @@ internal sealed class GatewayGalaxyAlarmFeed : IGalaxyAlarmFeed
         _ => GalaxyAlarmTransitionKind.Unspecified,
     };
 
+    /// <summary>Releases the alarm feed resources and stops the background stream task.</summary>
     public async ValueTask DisposeAsync()
     {
         if (_disposed) return;