docs: fill missing XML docs and strip tracking IDs from src comments

Clears CommentChecker findings in src/ (3,280 -> 209, the remainder being false
positives like PLC-5/IEEE-754/M0.0) by adding missing summaries/params/returns,
normalising inheritdoc usage, and removing Gitea/review tracking IDs while keeping
the rationale they annotated. Comment-only: comment-stripped sources are identical
to the parent commit.

src/Server/ZB.MOM.WW.OtOpcUa.ControlPlane/Telemetry/TelemetryStreamClient.cs

@@ -115,6 +115,7 @@ public sealed class TelemetryStreamClient : IDisposable
     /// <param name="onEvent">Sink for each received raw <see cref="TelemetryEvent"/>.</param>
     /// <param name="onError">Invoked once on an abnormal transport failure (the reconnect trigger).</param>
     /// <param name="ct">Cancels the stream (normal shutdown).</param>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     /// <exception cref="ArgumentException"><paramref name="correlationId"/> is null or empty.</exception>
     /// <exception cref="ArgumentNullException"><paramref name="onEvent"/> or <paramref name="onError"/> is null.</exception>
     /// <exception cref="ObjectDisposedException">This client has been disposed.</exception>
@@ -171,7 +172,7 @@ public sealed class TelemetryStreamClient : IDisposable
         }
     }
 
-    /// <inheritdoc />
+    /// <summary>Marks the client disposed and releases the channel if this client created it.</summary>
     public void Dispose()
     {
         _disposed = true;