Asisten Guru Store V5
- PHP Native 8.1+/8.2+, MySQL/MariaDB, Bootstrap 5
- Upgrade V4 -> V5 via update_v5.php; idempotent checks using information_schema.
- Professional admin dashboard: period filter, omzet/order trend, top products, top categories, stock critical.
- CRM pelanggan: customer detail, order history, internal notes, WhatsApp shortcut.
- Notification center: email templates, SMTP test, generic WhatsApp API webhook, delivery logs.
- Invoice PDF generator without external dependency.
- Expanded reporting/export CSV/XLS.
- Checkout/order notification hooks integrated with paid-state processing.
