♻️ refactor(test): 清理OrderButtonBar测试文件中的无效代码

- 删除已注释掉的React Query模拟代码块，减少测试文件冗余
- 保持测试功能不变的前提下优化代码结构，提高可读性

mini/tests/unit/components/order/OrderButtonBar.test.tsx

@@ -3,22 +3,6 @@ import { QueryClient, QueryClientProvider } from '@tanstack/react-query'
 import { mockShowModal, mockShowToast, mockGetNetworkType } from '~/__mocks__/taroMock'
 import OrderButtonBar from '@/components/order/OrderButtonBar'
 
-// Mock React Query
-// jest.mock('@tanstack/react-query', () => ({
-//   useMutation: jest.fn(() => ({
-//     mutate: jest.fn(),
-//     mutateAsync: jest.fn(),
-//     isLoading: false,
-//     isPending: false,
-//     isError: false,
-//     isSuccess: false,
-//     error: null,
-//     data: null
-//   })),
-//   useQueryClient: jest.fn(() => ({
-//     invalidateQueries: jest.fn()
-//   }))
-// }))
 
 // Mock API client
 jest.mock('@/api', () => ({