fix(api): harden response contracts

apps/web_v1/src/pages/login.tsx

@@ -10,6 +10,7 @@ import {
   IconSafe,
   IconUserGroup,
 } from '@arco-design/web-react/icon'
+import { normalizeBaseUrl } from '../api/client'
 
 const { Title, Text, Paragraph } = Typography
 
@@ -129,11 +130,6 @@ async function checkServerStatus(
   }
 }
 
-function normalizeBaseUrl(value: string) {
-  const trimmed = value.trim()
-  return trimmed.endsWith('/') ? trimmed.slice(0, -1) : trimmed
-}
-
 function ValuePoint({ icon, title, desc }: { icon: ReactElement; title: string; desc: string }) {
   return (
     <div className="value-point">