=== REQUEST ===
POST https://api.rootvabd.com/payment_sms_hook.php
X-Device-Id: COLLECTOR_DEVICE_001
X-Signature: Whw0FIBF88iit4q+vVwwc27cufee99SgEJsTbDv+pqw=
Body: {"gateway":"bkash","sender":"BKASH","account_number":"017XXXXXXXX","transaction_id":"ABC123","amount":500,"raw_text":"demo","received_at":"2026-07-20 11:53:51"}

=== RESULT ===
HTTP Code: 500

HTTP/1.1 500 Internal Server Error
Date: Mon, 20 Jul 2026 11:53:52 GMT
Server: Apache
Connection: close
Transfer-Encoding: chunked
Content-Type: application/json; charset=utf-8

{"success":false,"message":"Server error"}