campaign version refinment, user locks, db repair

server/alembic/env.py

@@ -10,7 +10,8 @@ from app.db import models  # noqa: F401 - ensure models are imported
 from app.settings import settings
 
 config = context.config
-config.set_main_option("sqlalchemy.url", settings.database_url)
+database_url = config.attributes.get("database_url") or settings.database_url
+config.set_main_option("sqlalchemy.url", database_url)
 
 if config.config_file_name is not None:
     fileConfig(config.config_file_name)