fix(historian): #691.3 review — remember a strict gateway's ceiling per data source; re-probe once when a bounded read comes back full

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Historian.Gateway/GatewayHistorianDataSource.cs

@@ -47,6 +47,9 @@ public sealed class GatewayHistorianDataSource : IHistorianDataSource, IAsyncDis
     private readonly int _maxRawRows;
     private readonly TimeProvider _time;
 
+    /// <summary>A strict gateway's row ceiling, learned from its first refusal (#691.3).</summary>
+    private readonly GatewayRowCeiling _ceiling = new();
+
     private readonly object _healthLock = new();
     private DateTime? _lastSuccessUtc;
     private DateTime? _lastFailureUtc;
@@ -204,8 +207,9 @@ public sealed class GatewayHistorianDataSource : IHistorianDataSource, IAsyncDis
 
         // One drained pass; a strict gateway's refusal of the budget is retried once at the ceiling it names (#691.3).
         Task<((List<HistorianSample> Samples, int PreWindowRows, bool Complete) Result, int Budget)> PassAsync(int budget) =>
-            GatewayReadLimits.ReadWithCeilingRetryAsync(budget,
-                b => ReadRawPassAsync(fullReference, startUtc, endUtc, cap, b, cancellationToken));
+            _ceiling.ReadAsync(budget,
+                b => ReadRawPassAsync(fullReference, startUtc, endUtc, cap, b, cancellationToken),
+                (r, _) => !r.Complete);
     }
 
     /// <summary>One forward raw read of a window, drained, with its pre-window row count and whether it is complete.</summary>
@@ -349,7 +353,7 @@ public sealed class GatewayHistorianDataSource : IHistorianDataSource, IAsyncDis
         {
             var now = _time.GetUtcNow().UtcDateTime;
             var values = await RawAggregateReader
-                .ReadAsync(_client, fullReference, aggregate, plan, _maxRawRows, now, cancellationToken)
+                .ReadAsync(_client, _ceiling, fullReference, aggregate, plan, _maxRawRows, now, cancellationToken)
                 .ConfigureAwait(false);
             RecordOutcome(success: true, error: null);
             return new HistoryReadResult(values, ContinuationPoint: null);