fix(admin): 迁移 antd v6 弃用 API 并清理控制台警告

- Card bordered -> variant；Modal maskClosable -> mask.closable
- InputNumber addonBefore/After -> prefix/suffix；Statistic valueStyle -> styles.content
- Alert message -> title；Steps items.description -> items.content
- 移除考勤页未挂载 Form 上的 setFieldsValue，消除 useForm 警告

apps/admin/src/components/ImportWizard/ImportWizardModal.tsx

@@ -456,7 +456,7 @@ export const ImportWizardModal: React.FC<ImportWizardModalProps> = ({
             </Flex>
           ) : allCommitted ? (
             <Space orientation="vertical" size={12} style={{ width: '100%' }}>
-              <Alert type="success" showIcon message="全部阶段已提交完成" />
+              <Alert type="success" showIcon title="全部阶段已提交完成" />
               <Descriptions
                 bordered
                 size="small"
@@ -607,7 +607,7 @@ export const ImportWizardModal: React.FC<ImportWizardModalProps> = ({
               )}
             </Space>
           ) : (
-            <Alert type="warning" showIcon message="当前没有可处理的阶段" />
+            <Alert type="warning" showIcon title="当前没有可处理的阶段" />
           )}
         </Space>
       )}