[Studio] Add client connection detail modal

web/src/i18n/translations.ts

@@ -187,6 +187,7 @@ const translations: Record<string, Record<Lang, string>> = {
   'clients.cluster': { zh: '所属集群', en: 'Cluster' },
   'clients.allClusters': { zh: '全部集群', en: 'All Clusters' },
   'clients.searchPlaceholder': { zh: '搜索 Client ID 或地址', en: 'Search Client ID or address' },
+  'clients.detailTitle': { zh: '客户端详情 - {id}', en: 'Client Detail - {id}' },
 
   // ─── Alert Rules ───
   'alerts.title': { zh: '告警规则管理', en: 'Alert Rules' },

web/src/pages/cluster/__tests__/ClientsPage.test.tsx

@@ -0,0 +1,96 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { App } from 'antd';
+import { render, screen, within } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
+import type React from 'react';
+import { afterEach, beforeAll, beforeEach, describe, expect, it, vi } from 'vitest';
+import type { ClientConnection } from '../../../api/connections';
+import { LangProvider } from '../../../i18n/LangContext';
+import * as connectionsService from '../../../services/connectionsService';
+import ClientsPage from '../clients';
+
+vi.mock('../../../services/connectionsService', () => ({
+  listConnections: vi.fn(),
+}));
+
+const connection: ClientConnection = {
+  clientId: 'order-svc-0@10.0.1.12:49152',
+  type: 'Producer',
+  groupOrTopic: 'order-create',
+  protocol: 'gRPC',
+  address: '10.0.1.12:49152',
+  language: 'Java',
+  version: '5.0.7',
+  connectedAt: '2026-07-01 08:30:00',
+  clusterName: 'ns-prod',
+};
+
+beforeAll(() => {
+  Object.defineProperty(window, 'matchMedia', {
+    writable: true,
+    value: vi.fn().mockImplementation((query: string) => ({
+      matches: false,
+      media: query,
+      onchange: null,
+      addListener: vi.fn(),
+      removeListener: vi.fn(),
+      addEventListener: vi.fn(),
+      removeEventListener: vi.fn(),
+      dispatchEvent: vi.fn(),
+    })),
+  });
+});
+
+beforeEach(() => {
+  vi.mocked(connectionsService.listConnections).mockResolvedValue([connection]);
+});
+
+afterEach(() => {
+  vi.clearAllMocks();
+});
+
+const renderWithProviders = (ui: React.ReactElement) =>
+  render(
+    <App>
+      <LangProvider>{ui}</LangProvider>
+    </App>,
+  );
+
+describe('Clients page', () => {
+  it('opens a client detail dialog from the connection table', async () => {
+    const user = userEvent.setup();
+    renderWithProviders(<ClientsPage />);
+
+    const row = await screen.findByRole('row', { name: /order-svc-0@10\.0\.1\.12:49152/ });
+    await user.click(within(row).getByRole('button', { name: /详情/ }));
+
+    const dialog = await screen.findByRole('dialog', {
+      name: /客户端详情 - order-svc-0@10\.0\.1\.12:49152/,
+    });
+    expect(within(dialog).getAllByText('order-svc-0@10.0.1.12:49152')).toHaveLength(1);
+    expect(within(dialog).getByText('ns-prod')).toBeInTheDocument();
+    expect(within(dialog).getByText('Producer')).toBeInTheDocument();
+    expect(within(dialog).getByText('order-create')).toBeInTheDocument();
+    expect(within(dialog).getByText('gRPC')).toBeInTheDocument();
+    expect(within(dialog).getByText('10.0.1.12:49152')).toBeInTheDocument();
+    expect(within(dialog).getByText('Java')).toBeInTheDocument();
+    expect(within(dialog).getByText('5.0.7')).toBeInTheDocument();
+    expect(within(dialog).getByText('2026-07-01 08:30:00')).toBeInTheDocument();
+  });
+});

web/src/pages/cluster/clients.tsx

@@ -16,8 +16,21 @@
  */
 
 import { useEffect, useMemo, useState } from 'react';
-import { Table, Card, Tag, Space, Input, Select, Flex, Typography, message } from 'antd';
-import { MagnifyingGlass } from '@phosphor-icons/react';
+import {
+  Button,
+  Card,
+  Descriptions,
+  Flex,
+  Input,
+  Modal,
+  Select,
+  Space,
+  Table,
+  Tag,
+  Typography,
+  message,
+} from 'antd';
+import { Eye, MagnifyingGlass } from '@phosphor-icons/react';
 import type { ColumnsType } from 'antd/es/table';
 
 import PageHeader from '../../components/PageHeader';
@@ -55,6 +68,7 @@ const ClientsPage = () => {
   const [loading, setLoading] = useState(true);
   const [search, setSearch] = useState('');
   const [clusterFilter, setClusterFilter] = useState<string>('ALL');
+  const [selectedConnection, setSelectedConnection] = useState<ClientConnection | null>(null);
 
   useEffect(() => {
     let cancelled = false;
@@ -221,6 +235,22 @@ const ClientsPage = () => {
         </Text>
       ),
     },
+    {
+      title: t('common.actions'),
+      key: 'actions',
+      width: 90,
+      fixed: 'right',
+      render: (_: unknown, record: ClientConnection) => (
+        <Button
+          size="small"
+          icon={<Eye size={14} />}
+          style={{ borderColor: '#1677ff', color: '#1677ff' }}
+          onClick={() => setSelectedConnection(record)}
+        >
+          {t('common.detail')}
+        </Button>
+      ),
+    },
   ];
 
   /* ═══════════════════════════════════════════
@@ -271,6 +301,53 @@ const ClientsPage = () => {
           size="small"
         />
       </Card>
+
+      <Modal
+        title={t('clients.detailTitle', { id: selectedConnection?.clientId ?? '' })}
+        open={Boolean(selectedConnection)}
+        onCancel={() => setSelectedConnection(null)}
+        footer={<Button onClick={() => setSelectedConnection(null)}>{t('common.close')}</Button>}
+        width={640}
+        destroyOnClose
+      >
+        {selectedConnection && (
+          <Descriptions column={1} bordered size="small">
+            <Descriptions.Item label={t('clients.clientId')}>
+              <Text copyable style={{ fontFamily: 'monospace' }}>
+                {selectedConnection.clientId}
+              </Text>
+            </Descriptions.Item>
+            <Descriptions.Item label={t('clients.cluster')}>
+              <Tag color="blue">{selectedConnection.clusterName}</Tag>
+            </Descriptions.Item>
+            <Descriptions.Item label={t('common.type')}>
+              {typeConfig[selectedConnection.type]?.label ?? selectedConnection.type}
+            </Descriptions.Item>
+            <Descriptions.Item label={t('clients.groupOrTopic')}>
+              {selectedConnection.groupOrTopic}
+            </Descriptions.Item>
+            <Descriptions.Item label={t('clients.protocol')}>
+              <Tag color={protocolConfig[selectedConnection.protocol]?.color ?? 'default'}>
+                {protocolConfig[selectedConnection.protocol]?.label ?? selectedConnection.protocol}
+              </Tag>
+            </Descriptions.Item>
+            <Descriptions.Item label={t('common.address')}>
+              <Text style={{ fontFamily: 'monospace' }}>{selectedConnection.address}</Text>
+            </Descriptions.Item>
+            <Descriptions.Item label={t('clients.language')}>
+              <Tag color={languageConfig[selectedConnection.language]?.color ?? 'default'}>
+                {languageConfig[selectedConnection.language]?.label ?? selectedConnection.language}
+              </Tag>
+            </Descriptions.Item>
+            <Descriptions.Item label={t('common.version')}>
+              {selectedConnection.version}
+            </Descriptions.Item>
+            <Descriptions.Item label={t('cluster.heartbeat')}>
+              {selectedConnection.connectedAt}
+            </Descriptions.Item>
+          </Descriptions>
+        )}
+      </Modal>
     </div>
   );
 };