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/Client/ZB.MOM.WW.OtOpcUa.Client.Shared/Adapters/ISessionAdapter.cs

@@ -58,6 +58,7 @@ internal interface ISessionAdapter : IDisposable
     /// </summary>
     /// <param name="nodeId">The node whose current runtime value should be read.</param>
     /// <param name="ct">The cancellation token that aborts the server read if the client cancels the request.</param>
+    /// <returns>The current data value read from the server.</returns>
     Task<DataValue> ReadValueAsync(NodeId nodeId, CancellationToken ct = default);
 
     /// <summary>
@@ -66,6 +67,7 @@ internal interface ISessionAdapter : IDisposable
     /// <param name="nodeId">The node whose value should be updated.</param>
     /// <param name="value">The typed OPC UA data value to write to the server.</param>
     /// <param name="ct">The cancellation token that aborts the write if the client cancels the request.</param>
+    /// <returns>The status code returned by the server for the write operation.</returns>
     Task<StatusCode> WriteValueAsync(NodeId nodeId, DataValue value, CancellationToken ct = default);
 
     /// <summary>
@@ -75,6 +77,7 @@ internal interface ISessionAdapter : IDisposable
     /// <param name="nodeId">The starting node for the hierarchical browse.</param>
     /// <param name="nodeClassMask">The node classes that should be returned to the caller.</param>
     /// <param name="ct">The cancellation token that aborts the browse request.</param>
+    /// <returns>A continuation point (or <c>null</c> when complete) and the references found.</returns>
     Task<(byte[]? ContinuationPoint, ReferenceDescriptionCollection References)> BrowseAsync(
         NodeId nodeId, uint nodeClassMask = 0, CancellationToken ct = default);
 
@@ -83,6 +86,7 @@ internal interface ISessionAdapter : IDisposable
     /// </summary>
     /// <param name="continuationPoint">The continuation token returned by a prior browse result page.</param>
     /// <param name="ct">The cancellation token that aborts the browse-next request.</param>
+    /// <returns>The next continuation point (or <c>null</c> when exhausted) and the additional references.</returns>
     Task<(byte[]? ContinuationPoint, ReferenceDescriptionCollection References)> BrowseNextAsync(
         byte[] continuationPoint, CancellationToken ct = default);
 
@@ -91,6 +95,7 @@ internal interface ISessionAdapter : IDisposable
     /// </summary>
     /// <param name="nodeId">The node to inspect for child objects or variables.</param>
     /// <param name="ct">The cancellation token that aborts the child lookup.</param>
+    /// <returns><c>true</c> when the node has at least one forward hierarchical child reference; otherwise <c>false</c>.</returns>
     Task<bool> HasChildrenAsync(NodeId nodeId, CancellationToken ct = default);
 
     /// <summary>
@@ -101,6 +106,7 @@ internal interface ISessionAdapter : IDisposable
     /// <param name="endTime">The inclusive end of the requested history window.</param>
     /// <param name="maxValues">The maximum number of raw samples to return to the client.</param>
     /// <param name="ct">The cancellation token that aborts the history read.</param>
+    /// <returns>The raw historical data values for the requested window.</returns>
     Task<IReadOnlyList<DataValue>> HistoryReadRawAsync(NodeId nodeId, DateTime startTime, DateTime endTime,
         int maxValues, CancellationToken ct = default);
 
@@ -113,6 +119,7 @@ internal interface ISessionAdapter : IDisposable
     /// <param name="aggregateId">The OPC UA aggregate function to evaluate over the history window.</param>
     /// <param name="intervalMs">The processing interval, in milliseconds, for each aggregate bucket.</param>
     /// <param name="ct">The cancellation token that aborts the aggregate history read.</param>
+    /// <returns>The processed/aggregate data values for the requested window.</returns>
     Task<IReadOnlyList<DataValue>> HistoryReadAggregateAsync(NodeId nodeId, DateTime startTime, DateTime endTime,
         NodeId aggregateId, double intervalMs, CancellationToken ct = default);
 
@@ -121,6 +128,7 @@ internal interface ISessionAdapter : IDisposable
     /// </summary>
     /// <param name="publishingIntervalMs">The requested publishing interval for monitored items on the new subscription.</param>
     /// <param name="ct">The cancellation token that aborts subscription creation.</param>
+    /// <returns>The newly created subscription adapter.</returns>
     Task<ISubscriptionAdapter> CreateSubscriptionAsync(int publishingIntervalMs, CancellationToken ct = default);
 
     /// <summary>
@@ -130,11 +138,13 @@ internal interface ISessionAdapter : IDisposable
     /// <param name="methodId">The method node to invoke.</param>
     /// <param name="inputArguments">The ordered input arguments supplied to the server method call.</param>
     /// <param name="ct">The cancellation token that aborts the method invocation.</param>
+    /// <returns>The output arguments returned by the method call.</returns>
     Task<IList<object>?> CallMethodAsync(NodeId objectId, NodeId methodId, object[] inputArguments, CancellationToken ct = default);
 
     /// <summary>
     /// Closes the underlying session gracefully before the adapter is disposed or replaced during failover.
     /// </summary>
     /// <param name="ct">The cancellation token that aborts the close request.</param>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     Task CloseAsync(CancellationToken ct = default);
 }