feature: fonepay integration

[crebro]

implement fone pay integration

Documentation/Resources

newer (comparatively):

1. Article on Dynamic QR Code Payments with Fonepay [ September 2025 ]
   • https://blog.bwishernepal.com/implementing-dynamic-qr-code-payments-with-fonepay-nepal-in-node-js-a-complete-developer-guide/
2. Article on Esewa, Khalti and Fonepay integration in Laravel [ May 2024 ]
   • https://pratikshrestha404.medium.com/esewa-khalti-and-fonepay-integration-in-laravel-3a5ca3c138b5
3. Implementation in flutter; newest update: 3 years ago
   • https://github.com/iamnabink/fonepay_flutter

older:

1. link to documentation on scribd: [ September 2020 ]
   • https://www.scribd.com/document/617430609/FonePay-Web-Integration-2-0
2. link to documentation on scribd without ads: [ September 2020 ]
   • https://www.scribd.com/embeds/617430609/content?start_page=1&view_mode=scroll

would like to work on this.