feat: implemented registration stage of preparation on PrepareUserState

implemented auth, added auth tools AcceptNotPreparedAttribute.cs, IAuthorizedTelegramCommand.cs

JOBot.TClient/Commands/InfoCommand.cs

@@ -0,0 +1,14 @@
+using Telegram.Bot;
+using Telegram.Bot.Types;
+
+namespace JOBot.TClient.Commands;
+
+public class InfoCommand(ITelegramBotClient bot) : ITelegramCommand
+{
+    public async Task ExecuteAsync(Update update, CancellationToken ct)
+    {
+        ArgumentNullException.ThrowIfNull(update.Message?.From);
+        
+        await bot.SendMessage(update.Message.From.Id, TextResource.Info, cancellationToken: ct);
+    }
+}