✅ Add tests to raise coverage to at least 90% and fix recover password logic (#632)

Co-authored-by: Sebastián Ramírez <tiangolo@gmail.com>

backend/app/crud.py

@@ -47,6 +47,7 @@ def authenticate(*, session: Session, email: str, password: str) -> User | None:
         return None
     return db_user
 
+
 def create_item(*, session: Session, item_in: ItemCreate, owner_id: int) -> Item:
     db_item = Item.model_validate(item_in, update={"owner_id": owner_id})
     session.add(db_item)