upd project structure

src/qbot/db/__init__.py

@@ -0,0 +1,19 @@
+from sqlmodel.ext.asyncio.session import AsyncSession
+from sqlalchemy.ext.asyncio import create_async_engine
+from sqlalchemy.orm import sessionmaker
+
+from ..config import config
+
+# import logging
+# logger = logging.getLogger('sqlalchemy.engine')
+# logger.setLevel(logging.DEBUG)
+
+async_engine = create_async_engine(config.DATABASE_URI)
+async_session = sessionmaker[AsyncSession](
+    async_engine, class_=AsyncSession, expire_on_commit=False
+)
+
+
+async def get_db() -> AsyncSession:  # type: ignore
+    async with async_session() as session:
+        yield session