feat: add filtering when choosing merge requests (#346)
feat: Add healthcheck (#345)
refactor: Move to gomock (#349)
feat: Makes the remote of the plugin configurable (#348)
This is a #MINOR release.
This MR represents a major refactor of the Go codebase, as well as introducing tests for the handlers. The MR also introduces an endpoint to shutdown or restart the Go server, which may be useful for clients who want to refresh the state of the plugin after checking out branches. Finally, this MR adds a contributing document for users who want to make feature changes.
