feat: 部门管理添加按钮级权限控制，移除部门角色表

models/__init__.py

@@ -7,7 +7,7 @@
 # @Comment : 本程序
 
 from models.config import Config
-from models.department import Department, DepartmentRole
+from models.department import Department
 from models.file import File
 from models.i18n import I18n, Locale
 from models.log import LoginLog, OperationLog
@@ -17,7 +17,6 @@ from models.user import User, UserRole
 
 __all__ = [
     'Department',
-    'DepartmentRole',
     'File',
     'LoginLog',
     'OperationLog',