fix(audit): M5 integration — add BackfillSourceNodeAsync to 5 test stubs (M5.5+M5.6 interface collision after cherry-pick recovery)

tests/ZB.MOM.WW.ScadaBridge.AuditLog.Tests/Central/AuditLogIngestActorTests.cs

@@ -220,6 +220,10 @@ public class AuditLogIngestActorTests : TestKit, IClassFixture<MsSqlMigrationFix
             string channel, DateTime threshold, int batchSize, CancellationToken ct = default) =>
             _inner.PurgeChannelOlderThanAsync(channel, threshold, batchSize, ct);
 
+        public Task<long> BackfillSourceNodeAsync(
+            string sentinel, DateTime before, int batchSize, CancellationToken ct = default) =>
+            _inner.BackfillSourceNodeAsync(sentinel, before, batchSize, ct);
+
         public Task<IReadOnlyList<DateTime>> GetPartitionBoundariesOlderThanAsync(
             DateTime threshold, CancellationToken ct = default) =>
             _inner.GetPartitionBoundariesOlderThanAsync(threshold, ct);

tests/ZB.MOM.WW.ScadaBridge.AuditLog.Tests/Central/AuditLogPurgeActorTests.cs

@@ -93,6 +93,10 @@ public class AuditLogPurgeActorTests : TestKit, IClassFixture<MsSqlMigrationFixt
             return Task.FromResult(RowsPerChannel(channel));
         }
 
+        public Task<long> BackfillSourceNodeAsync(
+            string sentinel, DateTime before, int batchSize, CancellationToken ct = default) =>
+            Task.FromResult(0L);
+
         public Task<ZB.MOM.WW.ScadaBridge.Commons.Types.AuditLogKpiSnapshot> GetKpiSnapshotAsync(
             TimeSpan window, DateTime? nowUtc = null, CancellationToken ct = default) =>
             Task.FromResult(new ZB.MOM.WW.ScadaBridge.Commons.Types.AuditLogKpiSnapshot(0L, 0L, 0L, nowUtc ?? DateTime.UtcNow));

tests/ZB.MOM.WW.ScadaBridge.AuditLog.Tests/Central/CentralAuditWriteFailuresTests.cs

@@ -47,6 +47,9 @@ public class CentralAuditWriteFailuresTests : TestKit
         public Task<long> PurgeChannelOlderThanAsync(
             string channel, DateTime threshold, int batchSize, CancellationToken ct = default) =>
             Task.FromResult(0L);
+        public Task<long> BackfillSourceNodeAsync(
+            string sentinel, DateTime before, int batchSize, CancellationToken ct = default) =>
+            Task.FromResult(0L);
         public Task<IReadOnlyList<DateTime>> GetPartitionBoundariesOlderThanAsync(
             DateTime threshold, CancellationToken ct = default) =>
             Task.FromResult<IReadOnlyList<DateTime>>(Array.Empty<DateTime>());

tests/ZB.MOM.WW.ScadaBridge.AuditLog.Tests/Central/SiteAuditReconciliationActorTests.cs

@@ -93,6 +93,10 @@ public class SiteAuditReconciliationActorTests : TestKit, IClassFixture<MsSqlMig
             string channel, DateTime threshold, int batchSize, CancellationToken ct = default) =>
             Task.FromResult(0L);
 
+        public Task<long> BackfillSourceNodeAsync(
+            string sentinel, DateTime before, int batchSize, CancellationToken ct = default) =>
+            Task.FromResult(0L);
+
         public Task<IReadOnlyList<DateTime>> GetPartitionBoundariesOlderThanAsync(
             DateTime threshold, CancellationToken ct = default) =>
             Task.FromResult<IReadOnlyList<DateTime>>(Array.Empty<DateTime>());

tests/ZB.MOM.WW.ScadaBridge.IntegrationTests/AuditLog/SiteAuditPushFlowTests.cs

@@ -93,6 +93,10 @@ public class SiteAuditPushFlowTests : TestKit
             string channel, DateTime threshold, int batchSize, CancellationToken ct = default)
             => throw new NotSupportedException();
 
+        public Task<long> BackfillSourceNodeAsync(
+            string sentinel, DateTime before, int batchSize, CancellationToken ct = default)
+            => throw new NotSupportedException();
+
         public Task<IReadOnlyList<DateTime>> GetPartitionBoundariesOlderThanAsync(
             DateTime threshold, CancellationToken ct = default)
             => throw new NotSupportedException();