=== REQUEST ===
POST https://api.rootvabd.com/payment_sms_hook.php
X-Device-Id: COLLECTOR_DEVICE_001
X-Signature: EWzBqvXSegc1O19bzoRq0qSm5yQPesQIH/7PCXZh+rs=
Body: {"gateway":"bkash","sender":"BKASH","account_number":"017XXXXXXXX","transaction_id":"ABC123","amount":500,"raw_text":"demo","received_at":"2026-09-17 01:36:01"}

=== RESULT ===
HTTP Code: 500

HTTP/1.1 500 Internal Server Error
Date: Thu, 17 Sep 2026 01:36:01 GMT
Server: Apache
Connection: close
Transfer-Encoding: chunked
Content-Type: application/json; charset=utf-8

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