test(opcua): distinguish baseline close semantics and terminal ownership

scripts/validation/opcua-lifecycle-memory/baseline-canonical/Program.cs

@@ -11,7 +11,8 @@ using Shouldly;
 using ZB.MOM.WW.OtOpcUa.Commons.OpcUa;
 using ZB.MOM.WW.OtOpcUa.Core.Abstractions;
 using CoreHistoryReadResult = ZB.MOM.WW.OtOpcUa.Core.Abstractions.HistoryReadResult;
-return await Canonical.RunAsync(args);
+return args.Length == 3 && (args[2] == "--semantic-retention-control" || args[2] == "--semantic-terminal-dispose-control")
+    ? await Canonical.SemanticRetentionAsync(args) : await Canonical.RunAsync(args);
 internal static partial class Canonical
 {
     private const string Scalar = BaselineRig.RawDeviceFolder + "/SoakScalar";
@@ -103,12 +104,15 @@ internal static partial class Canonical
     {public Task<NodeWriteOutcome> WriteAsync(string id,object? value,AddressSpaceRealm realm,CancellationToken ct)=>Task.FromResult(new NodeWriteOutcome(true,null));}
     internal sealed class SqlLikeEventSource(List<HistoricalEvent> events) : IHistorianDataSource
     {
+        private int _eventReads;
+        internal int EventReads => Volatile.Read(ref _eventReads);
         private readonly List<HistoricalEvent> _all =
             events.OrderBy(e => e.EventTimeUtc).ThenBy(e => e.EventId, StringComparer.Ordinal).ToList();
 
         public async Task<HistoricalEventsResult> ReadEventsAsync(
             string? sourceName, DateTime startUtc, DateTime endUtc, int maxEvents, CancellationToken ct)
         {
+            Interlocked.Increment(ref _eventReads);
             await Task.Delay(1, ct).ConfigureAwait(false); // complete on a pool thread, like a real backend
             var window = _all.Where(e => e.EventTimeUtc >= startUtc && e.EventTimeUtc < endUtc).ToList();
             var cap = maxEvents <= 0 ? 1000 : maxEvents;