fix: 保留小程序登录上下文

src/services/authService.ts

@@ -90,9 +90,15 @@ export function isWechatMiniProgramWebViewRuntime() {
   }
 
   const params = new URLSearchParams(window.location.search || '');
+  const userAgent =
+    typeof navigator === 'undefined' ? '' : navigator.userAgent || '';
+  const normalizedUserAgent = userAgent.toLowerCase();
+
   return (
     params.get('clientRuntime') === 'wechat_mini_program' ||
     params.get('clientType') === 'mini_program' ||
+    (normalizedUserAgent.includes('micromessenger') &&
+      normalizedUserAgent.includes('miniprogram')) ||
     Boolean(window.wx?.miniProgram?.postMessage)
   );
 }