fix tests

tests/shared/website/WebsiteAuthManager.ts

@@ -33,11 +33,12 @@ export class WebsiteAuthManager {
       const token = await WebsiteAuthManager.loginViaApi(request, apiBaseUrl, role);
 
       // Critical: the website (localhost:3000) must receive `gp_session` so middleware can forward it.
+      // Playwright cookie format - either url OR domain+path
       await context.addCookies([
         {
           name: 'gp_session',
           value: token,
-          url: baseURL,
+          domain: 'localhost',
           path: '/',
           httpOnly: true,
           sameSite: 'Lax',