fix: correct binded_redirect error message - suggest alternate WeChat account

Co-authored-by: Cursor <cursoragent@cursor.com>

lib/channel/weixin.js

@@ -401,7 +401,7 @@ async function _runLogin({ callId, timeoutMs, botType, emit, isAborted }) {
           log.warn('weixin', `callId=${callId} binded_redirect but local token missing — state inconsistency`);
           emit({
             action: 'finish', event: 'failed', code: 1010,
-            message: '微信已绑定，但本地登录已清除。请在微信 > 设置 > 隐私 > 授权管理 中找到并解除 OpenClaw 授权，再重新扫码登录。',
+            message: '此微信账号已绑定过本设备，但本地登录记录已丢失。请换用另一个微信账号扫码重新登录。',
           });
         }
         return;