feat: implemented registration stage of preparation on PrepareUserState

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

JOBot.TClient/Commands/MenuCommand.cs

@@ -0,0 +1,13 @@
+using JOBot.Proto;
+using JOBot.TClient.Services;
+using Telegram.Bot.Types;
+
+namespace JOBot.TClient.Commands;
+
+public class MenuCommand(MenuService menuService) : IAuthorizedTelegramCommand
+{
+    public async Task ExecuteAsync(Update update, GetUserResponse user, CancellationToken ct)
+    {
+        await menuService.RenderMenu(update, ct);
+    }
+}