Initial django guardian integrations

app/apps/keys/apps.py

@@ -5,3 +5,7 @@ class KeysConfig(AppConfig):
     default_auto_field = "django.db.models.BigAutoField"
     name = "apps.keys"
     verbose_name = "SSH Keys"
+
+    def ready(self) -> None:
+        from . import signals  # noqa: F401
+        return super().ready()