Add missing path=/ to setCookieWithoutExpiration

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

tests/unit/utils/cookieUtil.test.js

@@ -82,6 +82,15 @@ describe('cookieUtil', () => {
       expect(str).toContain('Secure');
       expect(str).toContain('SameSite=Lax');
     });
+
+    it('sets cookie with path=/', () => {
+      setCookieWithoutExpiration('pathKey', 'pathVal');
+
+      const written = cookieSetter.mock.calls.find(
+        (c) => c[0].startsWith('pathKey='),
+      );
+      expect(written[0]).toContain('path=/');
+    });
   });
 
   describe('deleteCookie', () => {