UX: Improved auth interceptor logic for smoother login experience

frontend/src/utils/api.js

@@ -17,9 +17,12 @@ api.interceptors.response.use(
   (res) => res,
   (err) => {
     if (err.response?.status === 401) {
-      localStorage.removeItem('tf_token');
-      localStorage.removeItem('tf_user');
-      window.location.href = '/login';
+      const isAuthPage = ['/login', '/register', '/accept-invite'].some(p => window.location.pathname.includes(p));
+      if (!isAuthPage) {
+        localStorage.removeItem('tf_token');
+        localStorage.removeItem('tf_user');
+        window.location.href = '/login';
+      }
     }
     return Promise.reject(err);
   }