Publish curated Knowledge Hub source from 2ed833f290b439a7bc91e5fd19b042c269e3bee9

src/backend/ItWorx.KnowledgeHub.Application/Operations/UseCases/CreateBackupUseCase.cs

@@ -8,10 +8,11 @@ public sealed record CreateBackupCommand(Guid ActorId, string? CorrelationId);
 /// an audit event on both success and failure — a failed backup is itself an
 /// operationally significant event (docs/19-observability.md "repeated backup
 /// failure" alert).</summary>
-public sealed class CreateBackupUseCase(IBackupService backups, IAuditEventRecorder auditEvents, TimeProvider timeProvider)
+public sealed class CreateBackupUseCase(IBackupService backups, IAuditEventRecorder auditEvents, TimeProvider timeProvider, PlatformMetrics? metrics = null)
 {
     public async Task<BackupSummary> ExecuteAsync(CreateBackupCommand command, CancellationToken cancellationToken)
     {
+        using var measurement = metrics?.Start("backup");
         var now = timeProvider.GetUtcNow();
         try
         {
@@ -30,6 +31,7 @@ public sealed class CreateBackupUseCase(IBackupService backups, IAuditEventRecor
                     now),
                 cancellationToken);
 
+            measurement?.Complete(summary.AttachmentCount);
             return summary;
         }
         catch (Exception exception) when (exception is not OperationCanceledException)