Premium POS Update Summary
==========================
Added modules:
1. Customer Management Full Module
2. Accounts / Finance Module
3. Advanced Reports
4. Multi-user / Role Permission
5. Full Inventory Control (stock overview, adjustments, transfers, locations)
6. Advanced Purchase System (multi-item purchase with stock-in and supplier payment entry)

Important deployment steps:
1. Keep your existing .env database credentials for your live server.
2. Run: php artisan migrate --force
3. If route/cache is used, then run:
   php artisan optimize:clear
4. Default Super Admin created by migration (if not exists):
   Email: admin@sef.com
   Password: 12345678

Notes:
- Purchase edit keeps old purchase items unchanged for stock safety.
- Inventory transfers are recorded as movement notes; they do not reduce stock twice.
- Role/permission is session-based using the admins table.
