feat(pdd): 拼多多订单支持 out_sku_sn 匹配与浏览器插件加密保活

- 拼多多进单 Cookie 失效即时拦截与告警修复（支持 43001 会话过期等错误识别）
- 拼多多订单映射优先使用 out_sku_sn（外部商家编码）作为商品规格与工单匹配核心字段
- 新增 Chrome/Edge 浏览器扩展 (Manifest V3)，支持端到端 RSA-OAEP + AES-256-GCM 信封加密自动保活
- 后台店铺管理新增插件配对面板、专属密钥管理与一键导入配置 JSON

apps/frontend/src/pages/admin/platform/PddPlatformPanel.tsx

@@ -7,10 +7,12 @@ import {
   ApiOutlined,
   CheckCircleOutlined,
   CloseCircleOutlined,
+  CopyOutlined,
   DeleteOutlined,
   EditOutlined,
   FieldTimeOutlined,
   GlobalOutlined,
+  LinkOutlined,
   PlusOutlined,
   ReloadOutlined,
   SafetyCertificateOutlined,
@@ -48,6 +50,7 @@ import { showError, showSuccess } from '@/lib/feedback'
 import {
   deleteAdminPddStore,
   fetchAdminPddConfig,
+  generateAdminPddStoreSyncToken,
   saveAdminPddConfig,
   saveAdminPddStore,
   testAdminPddCookie,
@@ -118,6 +121,35 @@ export function PddPlatformPanel() {
   const [modalTesting, setModalTesting] = useState(false)
   const [modalTestResult, setModalTestResult] = useState<AdminPddTestCookieResult | null>(null)
 
+  // Extension Pairing Modal State / 浏览器插件配对弹窗状态
+  const [extensionModalStore, setExtensionModalStore] = useState<AdminPddStoreItem | null>(null)
+  const [generatingToken, setGeneratingToken] = useState(false)
+
+  /**
+   * Generate or rotate syncToken for the store
+   * 为当前店铺生成/重置插件配对密钥
+   */
+  async function handleGenerateSyncToken(shopId: string) {
+    setGeneratingToken(true)
+    try {
+      const res = await generateAdminPddStoreSyncToken(shopId)
+      if (res?.data?.syncToken) {
+        showSuccess('插件配对密钥已生成')
+        if (extensionModalStore && extensionModalStore.shopId === shopId) {
+          setExtensionModalStore({
+            ...extensionModalStore,
+            syncToken: res.data.syncToken,
+          })
+        }
+        await loadConfig()
+      }
+    } catch (err: any) {
+      showError(err.message || '生成插件配对密钥失败')
+    } finally {
+      setGeneratingToken(false)
+    }
+  }
+
   useEffect(() => {
     void loadConfig()
   }, [])
@@ -520,6 +552,11 @@ export function PddPlatformPanel() {
                   {timeDisplay} 校验
                 </Text>
               )}
+              {record.lastExtensionSyncAt && (
+                <Tag color="cyan" style={{ fontSize: '11px', margin: 0 }}>
+                  插件保活: {formatDisplayTime(record.lastExtensionSyncAt)}
+                </Tag>
+              )}
             </Space>
           )
         }
@@ -537,6 +574,11 @@ export function PddPlatformPanel() {
                   {timeDisplay} 校验
                 </Text>
               )}
+              {record.lastExtensionSyncAt && (
+                <Tag color="orange" style={{ fontSize: '11px', margin: 0 }}>
+                  插件上次: {formatDisplayTime(record.lastExtensionSyncAt)}
+                </Tag>
+              )}
             </Space>
           )
         }
@@ -547,10 +589,19 @@ export function PddPlatformPanel() {
     {
       title: '操作',
       key: 'action',
-      width: 300,
+      width: 360,
       fixed: 'right',
       render: (_, record) => (
         <Space size={6} wrap={false}>
+          <Tooltip title="配置 Chrome/Edge 浏览器插件自动保活与端到端加密同步">
+            <Button
+              size="small"
+              icon={<LinkOutlined />}
+              onClick={() => setExtensionModalStore(record)}
+            >
+              插件配对
+            </Button>
+          </Tooltip>
           <Tooltip title="通过 Pure TS 0as 引擎实时测试 MMS 商家 Cookie 有效性并持久化校验状态">
             <Button
               size="small"
@@ -1109,6 +1160,163 @@ export function PddPlatformPanel() {
           </Form.Item>
         </Form>
       </Modal>
+
+      {/* 浏览器插件配对弹窗 */}
+      <Modal
+        title={`浏览器插件配对：${extensionModalStore?.shopName || ''} (${extensionModalStore?.shopId || ''})`}
+        open={Boolean(extensionModalStore)}
+        onCancel={() => setExtensionModalStore(null)}
+        footer={[
+          <Button key="close" onClick={() => setExtensionModalStore(null)}>
+            关闭
+          </Button>,
+        ]}
+        width={680}
+      >
+        <Alert
+          type="info"
+          showIcon
+          message="无感自动保活：配合 Chrome / Edge 扩展程序使用"
+          description="在客服日常登录拼多多后台的浏览器中安装「拼多多 Cookie 自动保活」扩展后，插件会在后台自动捕获新鲜 Cookie 并通过 RSA-OAEP + AES-256-GCM 混合信封加密安全同步，免除每天人工复制抓包与漏单风险。"
+          style={{ marginBottom: 16 }}
+        />
+
+        <div style={{ display: 'flex', flexDirection: 'column', gap: 14 }}>
+          <div>
+            <Text strong>服务端接口地址 (Server API URL)：</Text>
+            <div style={{ marginTop: 4 }}>
+              <Input
+                readOnly
+                value={window.location.origin}
+                addonAfter={
+                  <Button
+                    type="link"
+                    size="small"
+                    icon={<CopyOutlined />}
+                    onClick={() => {
+                      void navigator.clipboard.writeText(window.location.origin)
+                      showSuccess('接口地址已复制')
+                    }}
+                  >
+                    复制
+                  </Button>
+                }
+              />
+            </div>
+          </div>
+
+          <div>
+            <Text strong>店铺专属配对密钥 (Sync Token)：</Text>
+            <div style={{ display: 'flex', gap: 8, marginTop: 4 }}>
+              <Input
+                readOnly
+                value={extensionModalStore?.syncToken || '（未生成配对密钥）'}
+                placeholder="点击右侧按钮生成专属密钥"
+                style={{
+                  fontFamily: 'monospace',
+                  color: extensionModalStore?.syncToken ? '#1890ff' : '#8c8c8c',
+                }}
+              />
+              <Button
+                type="primary"
+                loading={generatingToken}
+                onClick={() =>
+                  extensionModalStore?.shopId && handleGenerateSyncToken(extensionModalStore.shopId)
+                }
+              >
+                {extensionModalStore?.syncToken ? '重新生成密钥' : '生成配对密钥'}
+              </Button>
+            </div>
+            <div style={{ fontSize: 12, color: '#8c8c8c', marginTop: 4 }}>
+              * 重新生成密钥后，旧插件配对将失效，需将新密钥填入插件中。
+            </div>
+          </div>
+
+          {extensionModalStore?.syncToken ? (
+            <Card size="small" style={{ background: '#f8fafc', borderColor: '#e2e8f0' }}>
+              <div
+                style={{
+                  display: 'flex',
+                  justifyContent: 'space-between',
+                  alignItems: 'center',
+                  marginBottom: 8,
+                }}
+              >
+                <Text strong style={{ fontSize: 13 }}>
+                  一键导入插件配置 (JSON)：
+                </Text>
+                <Button
+                  size="small"
+                  type="primary"
+                  icon={<CopyOutlined />}
+                  onClick={() => {
+                    const cfg = JSON.stringify(
+                      {
+                        serverUrl: window.location.origin,
+                        shopId: extensionModalStore.shopId,
+                        shopName: extensionModalStore.shopName,
+                        syncToken: extensionModalStore.syncToken,
+                      },
+                      null,
+                      2,
+                    )
+                    void navigator.clipboard.writeText(cfg)
+                    showSuccess('插件配置 JSON 已复制，打开插件点击【导入配置】即可！')
+                  }}
+                >
+                  一键复制完整配置
+                </Button>
+              </div>
+              <pre
+                style={{
+                  margin: 0,
+                  fontSize: 12,
+                  fontFamily: 'monospace',
+                  background: '#ffffff',
+                  padding: '8px 12px',
+                  borderRadius: 4,
+                  border: '1px solid #e2e8f0',
+                  maxHeight: 120,
+                  overflow: 'auto',
+                }}
+              >
+                {JSON.stringify(
+                  {
+                    serverUrl: window.location.origin,
+                    shopId: extensionModalStore.shopId,
+                    shopName: extensionModalStore.shopName,
+                    syncToken: extensionModalStore.syncToken,
+                  },
+                  null,
+                  2,
+                )}
+              </pre>
+            </Card>
+          ) : null}
+
+          <Card size="small" title="插件安装指引" style={{ background: '#fafafa' }}>
+            <ol
+              style={{
+                paddingLeft: 20,
+                margin: 0,
+                fontSize: 12,
+                color: '#475569',
+                lineHeight: 1.8,
+              }}
+            >
+              <li>
+                插件源码已存放在项目目录：
+                <Text code>apps/extensions/pdd-cookie-sync/</Text>
+              </li>
+              <li>
+                在 Chrome / Edge 浏览器打开：<Text code>chrome://extensions</Text>
+              </li>
+              <li>开启右上角【开发者模式】，点击左上角【加载已解压的扩展程序】并选择该目录；</li>
+              <li>点击浏览器工具栏扩展图标，点击【导入配置】并粘贴上述配置，保存即完成绑定！</li>
+            </ol>
+          </Card>
+        </div>
+      </Modal>
     </section>
   )
 }

apps/frontend/src/services/admin/platform-config/pdd.ts

@@ -10,6 +10,7 @@ import type {
   AdminPddTestCookieResult,
   AdminPddSyncResult,
   AdminPddSyncAllResponse,
+  AdminPddStoreSyncTokenResponse,
 } from '@/types/admin/platform-config'
 
 export function fetchAdminPddConfig() {
@@ -49,3 +50,9 @@ export function triggerAdminPddSync(
     payload,
   )
 }
+
+export function generateAdminPddStoreSyncToken(shopId: string) {
+  return apiPost<AdminPddStoreSyncTokenResponse>(
+    `/api/v1/admin/platform-config/pdd/stores/${encodeURIComponent(shopId)}/sync-token`,
+  )
+}

apps/frontend/src/types/admin/platform-config/index.ts

@@ -85,4 +85,5 @@ export type {
   AdminPddTestCookieResult,
   AdminPddSyncResult,
   AdminPddSyncAllResponse,
+  AdminPddStoreSyncTokenResponse,
 } from './pdd'

apps/frontend/src/types/admin/platform-config/pdd.ts

@@ -15,6 +15,14 @@ export interface AdminPddStoreItem {
   cookieValid?: boolean
   cookieCheckMessage?: string
   totalOrders?: number
+  syncToken?: string
+  lastExtensionSyncAt?: string
+}
+
+export interface AdminPddStoreSyncTokenResponse {
+  shopId: string
+  shopName: string
+  syncToken: string
 }
 
 export interface AdminPddConfig {