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.Browser/GalaxyBrowseSession.cs

@@ -22,10 +22,10 @@ internal sealed class GalaxyBrowseSession : IBrowseSession
     private volatile bool _disposed;
     private IReadOnlyList<LazyBrowseNode>? _roots;
 
-    /// <summary>Opaque token identifying this session in the AdminUI registry.</summary>
+    /// <inheritdoc />
     public Guid Token { get; } = Guid.NewGuid();
 
-    /// <summary>Wall-clock time of the most recent successful Root/Expand/Attributes call.</summary>
+    /// <inheritdoc />
     public DateTime LastUsedUtc { get; private set; } = DateTime.UtcNow;
 
     /// <summary>
@@ -40,11 +40,7 @@ internal sealed class GalaxyBrowseSession : IBrowseSession
         _client = client ?? throw new ArgumentNullException(nameof(client));
     }
 
-    /// <summary>
-    ///     Fetches the top-level <see cref="LazyBrowseNode"/>s from the gateway and
-    ///     returns them as <see cref="BrowseNode"/>s. Result is cached; a second call
-    ///     returns the cached roots without a re-fetch.
-    /// </summary>
+    /// <inheritdoc />
     public async Task<IReadOnlyList<BrowseNode>> RootAsync(CancellationToken cancellationToken)
     {
         ObjectDisposedException.ThrowIf(_disposed, this);
@@ -63,12 +59,7 @@ internal sealed class GalaxyBrowseSession : IBrowseSession
         }
     }
 
-    /// <summary>
-    ///     Fetches the direct children of the cached node identified by
-    ///     <paramref name="nodeId"/> (the object's <c>TagName</c>) via
-    ///     <see cref="LazyBrowseNode.ExpandAsync"/>. Throws <see cref="ArgumentException"/>
-    ///     if the tag hasn't been handed out by a prior Root/Expand call.
-    /// </summary>
+    /// <inheritdoc />
     public async Task<IReadOnlyList<BrowseNode>> ExpandAsync(string nodeId, CancellationToken cancellationToken)
     {
         ObjectDisposedException.ThrowIf(_disposed, this);
@@ -84,11 +75,7 @@ internal sealed class GalaxyBrowseSession : IBrowseSession
         return Project(node.Children);
     }
 
-    /// <summary>
-    ///     Fetches the attributes of the Galaxy object identified by <paramref name="nodeId"/>
-    ///     via <c>DiscoverHierarchyAsync(MaxDepth=0, RootTagName=nodeId, IncludeAttributes=true)</c>.
-    ///     Returns an empty list if the gateway has no matching object.
-    /// </summary>
+    /// <inheritdoc />
     public async Task<IReadOnlyList<AttributeInfo>> AttributesAsync(string nodeId, CancellationToken cancellationToken)
     {
         ObjectDisposedException.ThrowIf(_disposed, this);
@@ -151,6 +138,8 @@ internal sealed class GalaxyBrowseSession : IBrowseSession
     ///     0=FreeAccess, 1=Operate, 2=SecuredWrite, 3=VerifiedWrite,
     ///     4=Tune, 5=Configure, 6=ViewOnly; anything else surfaces as <c>Unknown(N)</c>.
     /// </summary>
+    /// <param name="raw">The raw Galaxy security-classification integer.</param>
+    /// <returns>The display string for the classification, or <c>Unknown(N)</c> if unrecognized.</returns>
     // internal for unit-test access (InternalsVisibleTo on the src project).
     internal static string MapSecurityClass(int raw) => raw switch
     {
@@ -170,6 +159,7 @@ internal sealed class GalaxyBrowseSession : IBrowseSession
     ///     Both <see cref="SemaphoreSlim.Dispose"/> and the client dispose are wrapped
     ///     in try/catch so a concurrent second dispose call never propagates.
     /// </summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     public async ValueTask DisposeAsync()
     {
         if (_disposed) return;