Revert URL cleanup - backend path is correct

The /membership path in backend URL is correct for development.
Issue is CORS configuration on backend, not URL format.

src/context/AuthContext.js

@@ -3,34 +3,14 @@ import axios from 'axios';
 
 const AuthContext = createContext();
 
-// Ensure API_URL is correctly set, with fallback and validation
-const getApiUrl = () => {
-  const url = process.env.REACT_APP_BACKEND_URL;
+const API_URL = process.env.REACT_APP_BACKEND_URL || window.location.origin;
 
-  // Log the environment variable for debugging
-  console.log('[AuthContext] Environment check:', {
-    REACT_APP_BACKEND_URL: url,
-    REACT_APP_BASENAME: process.env.REACT_APP_BASENAME,
-    PUBLIC_URL: process.env.PUBLIC_URL
-  });
-
-  if (!url) {
-    console.error('[AuthContext] REACT_APP_BACKEND_URL is not defined!');
-    // Fallback to current origin API (same domain)
-    return window.location.origin.replace('/membership', '');
-  }
-
-  // Remove any trailing /membership or /api from the backend URL
-  const cleanUrl = url.replace(/\/(membership|api)\/?$/, '');
-
-  if (cleanUrl !== url) {
-    console.warn('[AuthContext] Cleaned backend URL:', { original: url, cleaned: cleanUrl });
-  }
-
-  return cleanUrl;
-};
-
-const API_URL = getApiUrl();
+// Log environment on module load for debugging
+console.log('[AuthContext] Module initialized with:', {
+  REACT_APP_BACKEND_URL: process.env.REACT_APP_BACKEND_URL,
+  REACT_APP_BASENAME: process.env.REACT_APP_BASENAME,
+  API_URL: API_URL
+});
 
 export const AuthProvider = ({ children }) => {
   const [user, setUser] = useState(null);