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.OpcUaClient.Browser/OpcUaClientBrowseSession.cs

@@ -32,25 +32,19 @@ internal sealed class OpcUaClientBrowseSession : IBrowseSession
         _rootNodeId = rootNodeId;
     }
 
-    /// <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 browse call; the reaper uses
-    /// this for idle eviction.</summary>
+    /// <inheritdoc />
     public DateTime LastUsedUtc { get; private set; } = DateTime.UtcNow;
 
-    /// <summary>Browse one level under the configured root node.</summary>
-    /// <param name="cancellationToken">Cancellation token.</param>
+    /// <inheritdoc />
     public Task<IReadOnlyList<BrowseNode>> RootAsync(CancellationToken cancellationToken)
         => BrowseOneLevelAsync(_rootNodeId, cancellationToken);
 
-    /// <summary>Browse one level under the node identified by <paramref name="nodeId"/>,
-    /// which must be a stable reference produced by <see cref="NamespaceMap.ToStableReference"/>
-    /// (or a plain <c>ns=N;…</c> form).</summary>
-    /// <param name="nodeId">Stable reference string for the parent node.</param>
-    /// <param name="cancellationToken">Cancellation token.</param>
-    /// <exception cref="ArgumentException">Thrown when <paramref name="nodeId"/> cannot be
-    ///     resolved against the live session's namespace table.</exception>
+    /// <inheritdoc />
+    // Throws ArgumentException when nodeId cannot be resolved against the live session's
+    // namespace table.
     public Task<IReadOnlyList<BrowseNode>> ExpandAsync(string nodeId, CancellationToken cancellationToken)
     {
         if (!NamespaceMap.TryResolve(_session, nodeId, out var resolved))
@@ -59,12 +53,7 @@ internal sealed class OpcUaClientBrowseSession : IBrowseSession
         return BrowseOneLevelAsync(resolved, cancellationToken);
     }
 
-    /// <summary>The OPC UA picker treats variables as terminal leaves and does not surface
-    /// a per-attribute side-panel, so this always returns empty. <see cref="LastUsedUtc"/>
-    /// is still refreshed to honour the <see cref="IBrowseSession"/> contract and prevent
-    /// the reaper from evicting an active session that only receives attribute calls.</summary>
-    /// <param name="nodeId">Ignored.</param>
-    /// <param name="cancellationToken">Ignored.</param>
+    /// <inheritdoc />
     public Task<IReadOnlyList<AttributeInfo>> AttributesAsync(string nodeId, CancellationToken cancellationToken)
     {
         LastUsedUtc = DateTime.UtcNow;
@@ -111,8 +100,7 @@ internal sealed class OpcUaClientBrowseSession : IBrowseSession
             var refs = result.References;
 
             // Follow browse continuation points so folders larger than the server's per-call
-            // cap aren't silently truncated (same pattern as runtime
-            // Driver.OpcUaClient-003).
+            // cap aren't silently truncated.
             var cp = result.ContinuationPoint;
             while (cp is { Length: > 0 })
             {
@@ -163,6 +151,7 @@ internal sealed class OpcUaClientBrowseSession : IBrowseSession
     /// <summary>Idempotent best-effort dispose: closes the underlying session if it's a
     /// concrete <see cref="Session"/>, disposes it, and disposes the gate. Close errors are
     /// swallowed because the registry reaper may be racing a remote disconnect.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     public async ValueTask DisposeAsync()
     {
         if (_disposed) return;