Add [bot]: add dispatcher for polling the bot

src/bot/__init__.py

@@ -1,6 +1,7 @@
 __all__ = ["start_bot"]
 
 
+from aiogram import Bot, Dispatcher
 from redis.asyncio.client import Redis
 from sqlalchemy.ext.asyncio import AsyncSession
 
@@ -9,4 +10,8 @@ async def start_bot(
     bot_token: str,
     redis_client: Redis,
     database_session: AsyncSession,
-) -> None: ...
+) -> None:
+    bot = Bot(bot_token)
+    dp = Dispatcher()
+
+    await dp.start_polling(bot)