BizCore v5.0.3 Mundo Permission Repair Hotfix

Fixes the old migration that tried to insert into access_permissions.module.
Your BizCore schema uses access_permissions.module_code.

This package:
- does NOT create the separate Mundo storefront database
- does NOT delete/reset BizCore data
- keeps existing ecommerce core tables/data
- repairs missing Mundo permissions using module_code
- is safe to run again if already partially installed

Install:
1. Extract into the BizCore root (ceylongemx.online), overwrite files.
2. Open /update-5.0.php as Super Admin.
3. Click Install / Repair Mundo v5.0.
4. Confirm Core tables: Ready and Permissions: Ready.
5. Then continue to /update-5.1.php.
