Ultra ERP — Clean v2
====================
Stack: Toza PHP 8 + JS + Bootstrap 5, MySQL 8

Ishga tushirish:
1) /config/config.php da DB DSN/User/Pass ni kiriting.
2) Veb-root: /public (Apache .htaccess bor).
3) Migratsiya:  /index.php?r=admin/db/migrate
4) Seed:        /index.php?r=admin/db/seed   (admin@example.com / admin123)
5) Kirish:      /index.php?r=auth/login

Default marshrut:
- Login bo'lmasa / => auth/login
- Login bo'lsa    / => admin/dashboard/index

Modullar:
- Catalog: customers, suppliers, products (modal CRUD)
- Sales: orders, invoices, shipments (shipmentda FIFO/FEFO)
- Inventory: adjust IN (cost_layers + stock_transactions)
- Finance: bank CSV import
- Files: attachments (uploads/)
