feat: wire wechat archive through langbot and n8n

config/platform-infra/wechat-archive.yaml

@@ -17,6 +17,12 @@ langbot:
   publicBaseUrl: https://langbot.pikapython.com
   expectedAdapter: openclaw-weixin
   callbackPath: /callback/command
+  pipeline:
+    name: UniDesk WeChat Baidu Archive
+    description: Forward WeChat/OpenClaw messages to the UniDesk n8n archive workflow.
+    runner: n8n-service-api
+    outputKey: response
+    timeoutSeconds: 120
   notes:
     - LangBot receives WeChat/OpenClaw messages and forwards archive events to the n8n workflow webhook.
     - Credentials for real WeChat channels are bound in LangBot runtime and are not stored in this YAML.
@@ -31,6 +37,13 @@ n8n:
     active: true
     timezone: Asia/Shanghai
 
+archiveCallback:
+  publicUrl: http://74.48.78.17:18081/webhooks/wechat-archive
+  secretRoot: /root/unidesk/.state/secrets
+  tokenSourceRef: platform-infra/wechat-archive.env
+  tokenKey: UNIDESK_WECHAT_ARCHIVE_TOKEN
+  timeoutMs: 90000
+
 baiduNetdisk:
   serviceId: baidu-netdisk
   proxyMode: backend-core-microservice-proxy