备份：PWA配置前的完整版本

包含所有最新开发的功能和修复，作为PWA正确配置前的备份点。

frontend/src/pages/CustomerDetail.tsx

@@ -9,6 +9,7 @@ import {
 } from '@ant-design/icons'
 import apiClient from '../utils/request'
 import BusinessLedgerTab from '../components/BusinessLedgerTab'
+import { useLanguageStore } from '../store/languageStore'
 
 const { Title, Text } = Typography
 
@@ -77,6 +78,7 @@ interface BudgetProject {
 const CustomerDetail: React.FC = () => {
   const { id } = useParams<{ id: string }>()
   const navigate = useNavigate()
+  const { t, currentLanguage } = useLanguageStore()
   const [customer, setCustomer] = useState<Customer | null>(null)
   const [budgetProjects, setBudgetProjects] = useState<BudgetProject[]>([])
   const [loading, setLoading] = useState(true)
@@ -109,30 +111,30 @@ const CustomerDetail: React.FC = () => {
   }
 
   if (loading) return <Spin style={{ display: 'flex', justifyContent: 'center', padding: 50 }} />
-  if (!customer) return <Empty description="客户不存在" style={{ marginTop: 100 }} />
+  if (!customer) return <Empty description={t('customer.notFound')} style={{ marginTop: 100 }} />
 
   const budgetProjectColumns = [
-    { title: '项目名称', dataIndex: 'name', key: 'name', render: (v: string, record: BudgetProject) => (
+    { title: t('customer.projectName'), dataIndex: 'name', key: 'name', render: (v: string, record: BudgetProject) => (
       <Text strong onClick={() => navigate(`/budget-projects/${record.id}`)} style={{ cursor: 'pointer', color: '#1890ff' }}>{v}</Text>
     ) },
-    { title: '业务经理', dataIndex: 'manager_name', key: 'manager_name' },
-    { title: '状态', dataIndex: 'status', key: 'status', align: 'center' as const, render: (v: string) => {
+    { title: t('customer.businessManager'), dataIndex: 'manager_name', key: 'manager_name' },
+    { title: t('common.status'), dataIndex: 'status', key: 'status', align: 'center' as const, render: (v: string) => {
       const map: Record<string, { status: 'success' | 'processing' | 'error' | 'default'; text: string }> = {
-        negotiating: { status: 'processing', text: '商谈中' },
-        signed: { status: 'success', text: '已签约' },
-        unsigned: { status: 'error', text: '未签约' }
+        negotiating: { status: 'processing', text: t('customer.inNegotiation') },
+        signed: { status: 'success', text: t('customer.signed') },
+        unsigned: { status: 'error', text: t('customer.unsigned') }
       }
       const c = map[v] || { status: 'default', text: v }
       return <Badge status={c.status} text={c.text} />
     } },
-    { title: '报价版本数', dataIndex: 'quotations', key: 'quotations', align: 'center' as const, render: (q: Quotation[]) => (q || []).length },
-    { title: '创建时间', dataIndex: 'created_at', key: 'created_at', render: (v: string) => v?.split('T')[0] || '-' }
+    { title: t('customer.quotationCount'), dataIndex: 'quotations', key: 'quotations', align: 'center' as const, render: (q: Quotation[]) => (q || []).length },
+    { title: t('customer.createdAt'), dataIndex: 'created_at', key: 'created_at', render: (v: string) => v?.split('T')[0] || '-' }
   ]
 
   return (
     <div style={{ padding: '16px', maxWidth: 1200, margin: '0 auto' }}>
       <Button icon={<ArrowLeftOutlined />} onClick={() => navigate('/customers')} style={{ marginBottom: 16 }} type="text">
-        返回列表
+        {t('customer.returnToList')}
       </Button>
 
       <Title level={4} style={{ marginBottom: 24 }}>
@@ -143,42 +145,42 @@ const CustomerDetail: React.FC = () => {
       <Card style={{ borderRadius: 8 }}>
         <Tabs activeKey={activeTab} onChange={setActiveTab}>
           {/* TAB1: 基本信息 */}
-          <Tabs.TabPane tab={<span><UserOutlined /> 基本信息</span>} key="basic">
+          <Tabs.TabPane tab={<span><UserOutlined /> {t('customer.basicInfo')}</span>} key="basic">
             <Descriptions bordered column={{ xs: 1, sm: 2 }} size="small">
-              <Descriptions.Item label="编号">{customer.code}</Descriptions.Item>
-              <Descriptions.Item label="地址">{customer.address || '-'}</Descriptions.Item>
+              <Descriptions.Item label={t('customer.code')}>{customer.code}</Descriptions.Item>
+              <Descriptions.Item label={t('customer.address')}>{customer.address || '-'}</Descriptions.Item>
             </Descriptions>
             {customer.remark && (
               <div style={{ marginTop: 16 }}>
-                <Text type="secondary">备注：</Text>
+                <Text type="secondary">{t('customer.remarkLabel')}</Text>
                 <div style={{ padding: 12, background: '#f6ffed', borderRadius: 4, border: '1px solid #b7eb8f', marginTop: 8 }}>{customer.remark}</div>
               </div>
             )}
           </Tabs.TabPane>
 
           {/* TAB2: 联系人 */}
-          <Tabs.TabPane tab={<span><PhoneOutlined /> 联系人</span>} key="contacts">
+          <Tabs.TabPane tab={<span><PhoneOutlined /> {t('customer.contact')}</span>} key="contacts">
             <Row gutter={[16, 16]}>
               {(customer.contacts || []).map((contact, i) => (
                 <Col key={i} xs={24} sm={12} lg={8}>
                   <Card size="small" style={{ borderLeft: contact.is_primary ? '3px solid #52c41a' : '3px solid #d9d9d9', background: contact.is_primary ? '#f6ffed' : '#fff' }}>
                     <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center', marginBottom: 8 }}>
-                      <Text strong>{contact.name || '未命名'}</Text>
-                      {contact.is_primary && <Tag color="green">主联系人</Tag>}
+                      <Text strong>{contact.name || t('common.unnamed')}</Text>
+                      {contact.is_primary && <Tag color="green">{t('customer.mainContactTag')}</Tag>}
                     </div>
                     <div style={{ color: '#666', fontSize: 13 }}>
-                      {contact.position && <div>职位：{contact.position}</div>}
-                      {contact.phone && <div>电话：{contact.phone}</div>}
+                      {contact.position && <div>{t('customer.positionLabel')}{contact.position}</div>}
+                      {contact.phone && <div>{t('customer.phoneLabel')}{contact.phone}</div>}
                     </div>
                   </Card>
                 </Col>
               ))}
             </Row>
-            {(customer.contacts || []).length === 0 && <Empty description="暂无联系人" image={Empty.PRESENTED_IMAGE_SIMPLE} />}
+            {(customer.contacts || []).length === 0 && <Empty description={t('customer.noContact')} image={Empty.PRESENTED_IMAGE_SIMPLE} />}
           </Tabs.TabPane>
 
           {/* TAB3: 业务台账 */}
-          <Tabs.TabPane tab={<span><DollarOutlined /> 业务台账</span>} key="ledger">
+          <Tabs.TabPane tab={<span><DollarOutlined /> {t('customer.ledger')}</span>} key="ledger">
             <BusinessLedgerTab
               partnerType="customer"
               summary={customer.ledger?.summary || { item_count: 0, total_contract_amount: 0, total_received_amount: 0, total_receivable_amount: 0 }}
@@ -187,11 +189,11 @@ const CustomerDetail: React.FC = () => {
           </Tabs.TabPane>
 
           {/* TAB4: 关联预算 */}
-          <Tabs.TabPane tab={<span><FileTextOutlined /> 关联预算</span>} key="budget">
+          <Tabs.TabPane tab={<span><FileTextOutlined /> {t('customer.relatedBudget')}</span>} key="budget">
             {budgetProjects.length > 0 ? (
               <Table columns={budgetProjectColumns} dataSource={budgetProjects} rowKey="id" size="small" pagination={{ pageSize: 10 }} bordered />
             ) : (
-              <Empty description="暂无关联预算项目" image={Empty.PRESENTED_IMAGE_SIMPLE} />
+              <Empty description={t('customer.noBudget')} image={Empty.PRESENTED_IMAGE_SIMPLE} />
             )}
           </Tabs.TabPane>
         </Tabs>
@@ -200,4 +202,4 @@ const CustomerDetail: React.FC = () => {
   )
 }
 
-export default CustomerDetail
+export default CustomerDetail