gateway api fixes

src/EntKube.Web/Data/CnpgClusterDetail.cs

@@ -41,6 +41,12 @@ public class CnpgClusterDetail
     /// The current write LAG in bytes across replicas (0 = fully caught up).
     /// </summary>
     public long ReplicationLagBytes { get; set; }
+
+    /// <summary>
+    /// Live-synced backup list reconciled from K8s Backup CRs plus the DB records.
+    /// Populated by GetClusterDetailAsync; falls back to Cluster.Backups if sync is skipped.
+    /// </summary>
+    public List<CnpgBackup> Backups { get; set; } = [];
 }
 
 /// <summary>