Add backup management

src/Managing.Domain/Bots/Bot.cs

@@ -1,4 +1,5 @@
-using static Managing.Common.Enums;
+using System.Text.Json;
+using static Managing.Common.Enums;
 
 namespace Managing.Domain.Bots
 {
@@ -14,6 +15,7 @@ namespace Managing.Domain.Bots
         public int Interval { get; set; }
         public BotStatus Status { get; set; }
         private CancellationTokenSource CancellationToken { get; set; }
+        public string Data { get; set; }
 
         public Bot(string name)
         {
@@ -71,5 +73,8 @@ namespace Managing.Domain.Bots
         {
             return Name;
         }
+
+        public abstract string GetBackup();
+        public abstract void LoadBackup(BotBackup backup);
     }
 }