fix start command in telegram bot

app/webhooks/telegram.py

@@ -5,6 +5,7 @@ from aiogram.types import Update, Message
 from aiogram.fsm.state import State, StatesGroup
 from aiogram.fsm.context import FSMContext
 from aiogram.fsm.storage.memory import MemoryStorage
+from aiogram.filters import CommandStart, CommandObject
 
 from app.services.auth import AuthService
 
@@ -26,11 +27,10 @@ class Register(StatesGroup):
 
 # ===== Handlers =====
 
-@dp.message(F.text == "/start")
-async def start(message: Message, state: FSMContext):
-    args = message.text.split()
-    if len(args) > 1:
-        await state.update_data(username=args[1])
+@dp.message(CommandStart())
+async def start(message: Message, state: FSMContext, command: CommandObject):
+    if command.args:
+        await state.update_data(username=command.args)
         await state.set_state(Register.code)
         await message.answer("📋 Введите код из лаунчера:")
     else: