SHOAIB SUBSCRIPTION BOT - NAYAPAY ONLY V15

- DirectPay Pro runtime/API integration removed.
- Easypaisa/JazzCash DirectPay wallet top-up flow removed.
- DirectPay cron workers and admin pages removed.
- TOPUP -> asks amount immediately -> sends NayaPay account details -> screenshot -> OCR/Gmail verification -> wallet credit.
- CHECK TOPUP now checks NayaPay only.
- NayaPay cron remains cron/nayapay_verify.php.
- Existing DirectPay database tables/history are not dropped automatically; the bot no longer uses them.
