Fix alembic migration module import error by adding project root to Python path

generated with BackendIM... (backend.im)

alembic/env.py

@@ -1,10 +1,15 @@
 from logging.config import fileConfig
+import os
+import sys
 
 from sqlalchemy import engine_from_config
 from sqlalchemy import pool
 
 from alembic import context
 
+# Add the parent directory to the Python path
+sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), '..')))
+
 # this is the Alembic Config object, which provides
 # access to the values within the .ini file in use.
 config = context.config