Fix Alembic migration error by adding project root to Python path

migrations/env.py

@@ -1,4 +1,9 @@
 from logging.config import fileConfig
+import sys
+from pathlib import Path
+
+# Add the project root directory to Python's path
+sys.path.insert(0, str(Path(__file__).parents[1]))
 
 from sqlalchemy import engine_from_config
 from sqlalchemy import pool