docs(xmldoc): fill missing XML docs + strip tracking-ID comments across src

Adds <summary>/<param>/<returns>/<inheritdoc> where missing and removes
project bookkeeping IDs (task/tracking refs) from shipped code comments,
so the docs read cleanly and CommentChecker is quiet except for known
false positives (PLC/protocol terms, event/IEqualityComparer inheritdoc).
Doc/comment-only; no logic changed; solution builds clean.

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/Browse/AlarmRefBuilder.cs

@@ -39,6 +39,7 @@ internal static class AlarmRefBuilder
     /// <param name="fullReference">The full reference of the alarm-bearing attribute.</param>
     /// <param name="initialSeverity">The initial alarm severity level.</param>
     /// <param name="initialDescription">The initial alarm description.</param>
+    /// <returns>The populated <see cref="AlarmConditionInfo"/> with all five sub-attribute references.</returns>
     public static AlarmConditionInfo Build(
         string fullReference,
         AlarmSeverity initialSeverity = AlarmSeverity.Medium,

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/Browse/DataTypeMap.cs

@@ -14,12 +14,13 @@ namespace ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Browse;
 ///     and encode (Boolean, Int32, Int64, Float32, Float64, String, DateTime). Without it an
 ///     Int64 attribute fell through to the <see cref="DriverDataType.String"/> default,
 ///     creating a String address-space node while runtime reads decoded a boxed <c>long</c> —
-///     a metadata / coercion mismatch (Driver.Galaxy-002).
+///     a metadata / coercion mismatch.
 /// </remarks>
 internal static class DataTypeMap
 {
     /// <summary>Maps an MXAccess data type ID to a driver data type.</summary>
     /// <param name="mxDataType">The MXAccess data type ID.</param>
+    /// <returns>The corresponding <see cref="DriverDataType"/>, or <see cref="DriverDataType.String"/> for unknown codes.</returns>
     public static DriverDataType Map(int mxDataType) => mxDataType switch
     {
         0 => DriverDataType.Boolean,

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/Browse/DeployWatcher.cs

@@ -98,6 +98,7 @@ public sealed class DeployWatcher : IDisposable
     }
 
     /// <summary>Cancels the loop and waits for it to exit cleanly.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     public async Task StopAsync()
     {
         var cts = _cts;

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/Browse/GalaxyDiscoverer.cs

@@ -44,6 +44,7 @@ public sealed class GalaxyDiscoverer
     /// </summary>
     /// <param name="builder">The address space builder to populate with discovery results.</param>
     /// <param name="cancellationToken">The cancellation token for the operation.</param>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     public async Task DiscoverAsync(IAddressSpaceBuilder builder, CancellationToken cancellationToken)
     {
         ArgumentNullException.ThrowIfNull(builder);

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/Browse/GatewayGalaxyDeployWatchSource.cs

@@ -22,10 +22,7 @@ public sealed class GatewayGalaxyDeployWatchSource : IGalaxyDeployWatchSource
         _client = client ?? throw new ArgumentNullException(nameof(client));
     }
 
-    /// <summary>Watches for deploy events asynchronously.</summary>
-    /// <param name="lastSeenDeployTime">The last deploy time that was observed.</param>
-    /// <param name="cancellationToken">The cancellation token.</param>
-    /// <returns>An async enumerable of deploy events.</returns>
+    /// <inheritdoc />
     public IAsyncEnumerable<DeployEvent> WatchAsync(
         DateTimeOffset? lastSeenDeployTime, CancellationToken cancellationToken)
         => _client.WatchDeployEventsAsync(lastSeenDeployTime, cancellationToken);

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/Browse/GatewayGalaxyHierarchySource.cs

@@ -20,10 +20,7 @@ public sealed class GatewayGalaxyHierarchySource : IGalaxyHierarchySource
         _client = client ?? throw new ArgumentNullException(nameof(client));
     }
 
-    /// <summary>
-    ///     Discovers the Galaxy object hierarchy asynchronously via the gateway.
-    /// </summary>
-    /// <param name="cancellationToken">Cancellation token for the operation.</param>
+    /// <inheritdoc />
     public Task<IReadOnlyList<GalaxyObject>> GetHierarchyAsync(CancellationToken cancellationToken)
         => _client.DiscoverHierarchyAsync(cancellationToken);
 }

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/Browse/IGalaxyDeployWatchSource.cs

@@ -21,6 +21,7 @@ public interface IGalaxyDeployWatchSource
     /// </summary>
     /// <param name="lastSeenDeployTime">The last seen deploy time, or null to receive a bootstrap event.</param>
     /// <param name="cancellationToken">The cancellation token.</param>
+    /// <returns>An async stream of deploy events, starting with a bootstrap event unless suppressed.</returns>
     IAsyncEnumerable<DeployEvent> WatchAsync(
         DateTimeOffset? lastSeenDeployTime, CancellationToken cancellationToken);
 }

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/Browse/IGalaxyHierarchySource.cs

@@ -16,5 +16,6 @@ public interface IGalaxyHierarchySource
     ///     callers don't reimplement paging.
     /// </summary>
     /// <param name="cancellationToken">Cancellation token for the operation.</param>
+    /// <returns>The full materialised Galaxy object hierarchy.</returns>
     Task<IReadOnlyList<GalaxyObject>> GetHierarchyAsync(CancellationToken cancellationToken);
 }