Establish @rfjs api application

[royfuwei]

Description

Create an API service utilizing Koa, routing-controllers, and tsyringe. This setup combines Koa as the web framework, routing-controllers for defining API routes and controllers in a decorator-based manner, and tsyringe for dependency injection. With this configuration, developers can efficiently build a robust API service for @rfjs, benefiting from the simplicity of Koa, the flexibility of routing-controllers, and the power of tsyringe for managing dependencies.