fix: allow global auth redirect without tenant

frontend/portal/src/utils/request.js

@@ -7,7 +7,8 @@ export async function request(endpoint, options = {}) {
   const baseUrl = isAuthRequest ? "/v1" : tenantCode ? `/v1/t/${tenantCode}` : "/v1";
 
   if (!tenantCode && !isAuthRequest && !endpoint.startsWith("/tenants")) {
-    throw new Error("Tenant code missing in URL");
+    // 无租户时仍允许访问公共入口，避免全局页面 404
+    // 这里改为不抛错，由调用方控制跳转
   }
   const token = localStorage.getItem("token");
 
@@ -47,7 +48,7 @@ export async function request(endpoint, options = {}) {
       if (res.status === 401) {
         localStorage.removeItem("token");
         localStorage.removeItem("user");
-        const loginPath = tenantCode ? `/t/${tenantCode}/auth/login` : "/auth/login";
+        const loginPath = "/auth/login";
         // Redirect to login if not already there
         if (!window.location.pathname.includes("/auth/login")) {
           window.location.href = loginPath;