Adds correct command check

TelegramBot/Agent.cs

@@ -2,9 +2,10 @@
 
 namespace TelegramBot;
 
-public class Agent(Actor actor, long telegramId, string name, TelegramBotClient bot) {
+public class Agent(Actor actor, long telegramId, string name, string username, TelegramBotClient bot) {
     public Actor Actor { get; } = actor;
     public long TelegramId { get; } = telegramId;
+    public string Username { get; } = username;
     public string Name { get; } = name;
     public TelegramBotClient Bot { get; } = bot;
 }