Add campaign manager

Hcs.WebApp/Data/Hcs/Registry.cs

@@ -10,7 +10,13 @@
 
         public bool IsCommon { get; set; }
 
-        public DateTime UpdatedAt { get; set; }
+        public DateTime SyncedAt { get; set; }
+
+        public int LastSyncOperationId { get; set; }
+
+        public virtual Operation LastSyncOperation { get; set; }
+
+        public string LastSyncError { get; set; }
 
         public virtual ICollection<RegistryElement> Elements { get; set; } = [];
     }