feat(audit)!: ScadaBridge C3 — swap to canonical ZB.MOM.WW.Audit.AuditEvent across seams/emitters/DTO/redactor wiring; transitional 24-col storage shim (Task 2.5)

src/ZB.MOM.WW.ScadaBridge.AuditLog/Central/SiteAuditReconciliationActor.cs

@@ -2,8 +2,8 @@ using Akka.Actor;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Options;
-using ZB.MOM.WW.ScadaBridge.Commons.Entities.Audit;
 using ZB.MOM.WW.ScadaBridge.Commons.Interfaces.Repositories;
+using ZB.MOM.WW.ScadaBridge.Commons.Types.Audit;
 
 namespace ZB.MOM.WW.ScadaBridge.AuditLog.Central;
 
@@ -258,7 +258,9 @@ public class SiteAuditReconciliationActor : ReceiveActor
                 // concurrent push, or a retry of this very pull) collapse to
                 // a no-op courtesy of M2 Bundle A's race-fix on
                 // InsertIfNotExistsAsync.
-                var ingested = evt with { IngestedAtUtc = nowUtc };
+                // C3: IngestedAtUtc is a DetailsJson field on the canonical record —
+                // stamp it via the projection helper.
+                var ingested = AuditRowProjection.WithIngestedAtUtc(evt, nowUtc);
                 await repository.InsertIfNotExistsAsync(ingested).ConfigureAwait(false);
                 _failedInsertAttempts.Remove(evt.EventId);
                 advanceForThisRow = true;
@@ -299,9 +301,11 @@ public class SiteAuditReconciliationActor : ReceiveActor
                 }
             }
 
-            if (advanceForThisRow && evt.OccurredAtUtc > maxOccurred)
+            // C3: canonical OccurredAtUtc is a DateTimeOffset; the cursor is a UTC DateTime.
+            var occurredUtc = evt.OccurredAtUtc.UtcDateTime;
+            if (advanceForThisRow && occurredUtc > maxOccurred)
             {
-                maxOccurred = evt.OccurredAtUtc;
+                maxOccurred = occurredUtc;
             }
         }