Resolve all 46 low-severity architecture review findings

src/ZB.MOM.WW.ScadaBridge.Commons/Interfaces/Services/IPullTraceEventsClient.cs

@@ -17,11 +17,12 @@ public interface IPullTraceEventsClient
     /// <param name="sinceUtc">Lower bound on <c>OccurredAtUtc</c> (the run's start is the natural choice).</param>
     /// <param name="maxEvents">Row cap (the site caps at 2000).</param>
     /// <param name="ct">Cancellation token.</param>
+    /// <param name="afterEventId">Optional exclusive EventId at sinceUtc for stable keyset paging.</param>
     /// <returns>The matching rows ordered <c>(OccurredAtUtc, EventId)</c>; empty on fault or unknown site.</returns>
     Task<IReadOnlyList<AuditEvent>> PullAsync(
         string siteId,
         IReadOnlyCollection<Guid> executionIds,
         DateTime sinceUtc,
         int maxEvents,
-        CancellationToken ct);
+        CancellationToken ct, string? afterEventId = null);
 }

src/ZB.MOM.WW.ScadaBridge.Commons/Interfaces/Services/ISiteAuditQueue.cs

@@ -232,5 +232,5 @@ public interface ISiteAuditQueue
     /// forwarding state — moves no cursor and flips nothing. At most 64 ids per call.
     /// </summary>
     Task<IReadOnlyList<AuditEvent>> ReadByExecutionIdsAsync(
-        IReadOnlyCollection<Guid> executionIds, DateTime sinceUtc, int limit, CancellationToken ct = default);
+        IReadOnlyCollection<Guid> executionIds, DateTime sinceUtc, int limit, CancellationToken ct = default, string? afterEventId = null);
 }