add migrations

alembic/env.py

@@ -1,8 +1,14 @@
 import asyncio
+import os
+import sys
 
 from alembic import context
 from sqlalchemy.ext.asyncio import create_async_engine
 
+
+parent_dir = os.path.abspath(os.path.join(os.getcwd()))
+sys.path.append(parent_dir)
+
 from the_app.models.base import Base as app_base
 
 target_metadata = app_base.metadata