docs(code): correct comments stale after the perf remainder

src/Server/ZB.MOM.WW.OtOpcUa.Runtime/Drivers/DriverInstanceActor.cs

@@ -101,10 +101,10 @@ public sealed class DriverInstanceActor : ReceiveActor, IWithTimers
     ///     state — a no-op when already Reconnecting or Connecting.
     /// </summary>
     public sealed record ForceReconnect;
-    /// <summary>One driver-published value. NOT sent to the parent by the subscription path any more — the
-    /// actor batches every data change into an <see cref="AttributeValueBatchPublished"/>. Still live as the
-    /// per-value message the parent fans onward (the dependency mux consumes it, and
-    /// <c>DriverHostActor.FanCommsLossToDependencyMux</c> fabricates it).
+    /// <summary>One driver-published value. <b>No production sender remains</b> — the subscription path
+    /// batches every data change into an <see cref="AttributeValueBatchPublished"/>, and the comms-loss fan
+    /// (<c>DriverHostActor.FanCommsLossToDependencyMux</c>), which was the last sender to fabricate this
+    /// message, now fabricates a batch too. The dependency mux still accepts it for tests and direct senders.
     /// <para><paramref name="StatusCode"/> is the driver's full OPC UA status code including its sub-code
     /// (#519) — not a severity bucket. Classify it with <see cref="OpcUaStatus.IsGood"/> and friends rather
     /// than comparing it to <see cref="OpcUaStatus.Good"/>.</para></summary>