DONE: update to use ip for the api in frontend

fe/web/admin-app/src/constants.js

@@ -1,6 +1,8 @@
 export const SERVER_URL = import.meta.env.VITE_API_URL;
 
-export const CUSTOMER_APP_URL = 'https://qms-customer.erahn.com.my';
+/** Public base URL encoded into branch QR codes (ManageBranchesScreen only). */
+export const BRANCH_QR_BASE_URL =
+    import.meta.env.VITE_BRANCH_QR_BASE_URL ?? 'http://localhost:3000';
 
 export const ROLES = {
     ROLE_SUPER_ADMIN: 'ROLE_SUPER_ADMIN',