feat(backend): migrate auth and notifications off email

README.md

@@ -28,7 +28,7 @@ guilan-ace-backend/
 python -m venv .venv
 .venv\\Scripts\\activate
 pip install -r requirements.txt
-cp .env.sample .env
+cp .env.example .env
 python manage.py migrate
 python manage.py runserver
 ```
@@ -42,4 +42,3 @@ python manage.py test --settings=config.settings.test
 - Domain routers live under `apps/<domain>/api`.
 - Shared auth helpers live in `core/authentication.py`.
 - Shared base models, admin helpers, choices, and template tags live under `core/`.
-