清理全局角色残留并修复项目权限判断

backend/tests/test_etmf_nodes.py

@@ -12,13 +12,13 @@ from app.models.document import Document, DocumentScopeType
 from app.models.document_version import DocumentVersion  # noqa: F401
 from app.models.distribution import Distribution  # noqa: F401
 from app.models.acknowledgement import Acknowledgement  # noqa: F401
-from app.models.user import UserRole, UserStatus
+from app.models.user import UserStatus
 
 
 class UserStub:
     def __init__(self) -> None:
         self.id = uuid.uuid4()
-        self.role = UserRole.ADMIN
+        self.is_admin = True
         self.status = UserStatus.ACTIVE