feat: support aff now (close #75)

router/api-router.go

@@ -37,6 +37,7 @@ func SetApiRouter(router *gin.Engine) {
 				selfRoute.PUT("/self", controller.UpdateSelf)
 				selfRoute.DELETE("/self", controller.DeleteSelf)
 				selfRoute.GET("/token", controller.GenerateAccessToken)
+				selfRoute.GET("/aff", controller.GetAffCode)
 				selfRoute.POST("/topup", controller.TopUp)
 			}