fix: show sync failures on hover and preserve browser error details

web/src/components/accounts/MonitoringAccountList.tsx

@@ -1,7 +1,7 @@
 // 监控账号列表：表格呈现账号画像、作品数据与同步状态。
 import { useCallback, useEffect, useState } from 'react';
 import { history } from '@umijs/max';
-import { Alert, App, Avatar, Button, Card, Flex, Form, Modal, Popconfirm, Select, Space, Table, Tag, Typography } from 'antd';
+import { Alert, App, Avatar, Button, Card, Flex, Form, Modal, Popconfirm, Select, Space, Table, Tag, Tooltip, Typography } from 'antd';
 import type { ColumnsType } from 'antd/es/table';
 import { CloudUploadOutlined, ReloadOutlined } from '@ant-design/icons';
 import { getList, remove, creatorAction, creatorUpdate } from '@/services/api';
@@ -165,11 +165,14 @@ export default function MonitoringAccountList() {
         const meta = syncStatusMeta[account.sync_status ?? ''] || { label: account.sync_status || '—' };
         return (
           <Flex vertical>
-            <div><Tag color={meta.color}>{meta.label}</Tag></div>
+            <div>
+              <Tooltip title={account.sync_status === 'failed' || account.sync_status === 'blocked' ? account.sync_error : undefined}>
+                <Tag color={meta.color}>{meta.label}</Tag>
+              </Tooltip>
+            </div>
             <Typography.Text type="secondary" style={{ fontSize: 12 }}>
               上次同步 {account.last_sync_at ? dateTime(account.last_sync_at) : '—'}
             </Typography.Text>
-            {account.sync_error ? <Typography.Text type="danger" style={{ fontSize: 12 }}>{account.sync_error}</Typography.Text> : null}
           </Flex>
         );
       },