perf(store-and-forward): bound retry sweep with SweepBatchLimit (default 500) on the due-rows query

src/ZB.MOM.WW.ScadaBridge.StoreAndForward/StoreAndForwardService.cs

@@ -601,7 +601,7 @@ public class StoreAndForwardService
                 }
             }
 
-            var messages = await _storage.GetMessagesForRetryAsync();
+            var messages = await _storage.GetMessagesForRetryAsync(_options.SweepBatchLimit);
             if (messages.Count == 0) return;
 
             _logger.LogDebug("Retry sweep: {Count} messages due for retry", messages.Count);