fix ocr

backend/alembic/env.py

@@ -1,8 +1,16 @@
 from logging.config import fileConfig
+import sys
+from pathlib import Path
 
 from sqlalchemy import engine_from_config, pool
 from alembic import context
 
+# Ensure `backend/` is on sys.path so `import app...` works
+# no matter where `alembic` is executed from.
+BACKEND_ROOT = Path(__file__).resolve().parents[1]
+if str(BACKEND_ROOT) not in sys.path:
+    sys.path.insert(0, str(BACKEND_ROOT))
+
 from app.core.config import settings
 from app.core.database import Base
 import app.models  # noqa: F401 – ensure all models are imported