[common] improve logging

Core/Extensions/ChatExtension.cs

@@ -0,0 +1,20 @@
+using System;
+using Telegram.Bot.Types;
+using Telegram.Bot.Types.Enums;
+
+namespace Kruzya.TelegramBot.Core.Extensions;
+
+public static class ChatExtension
+{
+    public static string ToLog(this Chat chat)
+    {
+        var title = chat.Type switch
+        {
+            ChatType.Private => $"{chat.FirstName} {chat.LastName}".Trim(),
+            _ => chat.Title
+        };
+
+
+        return $"{title} (ID: {chat.Id}, Username: {chat.Username ?? "N/A"})";
+    }
+}