Make the NicePay Payment Gateway Plugin in a Laravel-based e-commerce system designed by Botble Technologies Website: https://botble.com/ NicePay Payment Gateway Docs: https://developers.nicepay.co.kr/ Botble Plugin Development Docs: https://docs.botble.com/cms/plugin-development/ About My Codebase (Purchased from CodeCanyon): I have already purchased the full code for Web CMS and Mobile Apps (Android + iOS). Web CMS Product: Farmart – Single or Multivendor Laravel Ecommerce System https://codecanyon.net/item/farmart-single-or-multivendor-laravel-ecommerce-system/37567853?s_rank=18 Mobile Apps (Android + iOS): Martfury – Flutter Ecommerce Apps for Botble Scripts https://codecanyon.net/item/martfury-flutter-complete-ecommerce-mobile-apps-for-botble-scripts/58479245?s_rank=4 I will provide the complete web CMS code and mobile app code to the developer. Documentation for Setup: Web CMS Setup Docs: https://docs.botble.com/farmart/ Mobile App Compiling Docs: https://docs.botble.com/martfury-flutter/ The mobile apps are already ready and compiled by me. Important Requirement: This NicePay payment gateway plugin must work on all three platforms: Web (Farmart Laravel CMS) Android app (Martfury Flutter) iOS app (Martfury Flutter) The plugin must integrate fully into Botble's payment system and expose APIs/endpoints required for mobile checkout. Deliverables 1. Full Plugin Folder / ZIP A complete, production-ready NicePay plugin placed under: /platform/plugins/ Must be installable and activate without core modifications. 2. Installation + Configuration Guide A clear step-by-step document that includes: How to install the plugin How to configure NicePay merchant keys How to enable Sandbox or Production How to set callback URLs How to connect it with the mobile apps 3. Sandbox Test Proof Screenshots or a short recorded demo (web + mobile) Successful transaction showing order status updated Logs or responses confirming NicePay callback success 4. Clean, Documented Code With No Core Modifications No changes in /platform/core/ All logic inside the plugin only Commented PHP code API endpoints documented for the Flutter apps Environment variables (.env) for all credentials