refactor & fix: stub driver and server

server/ext/main.go

@@ -1,7 +1,6 @@
 package server_ext
 
 import (
-	"github.com/gin-gonic/gin"
 	"github.com/httprunner/httprunner/v5/server"
 )
 
@@ -9,23 +8,15 @@ type RouterExt struct {
 	*server.Router
 }
 
-type RouterBaseMethodExt struct {
-	server.RouterBaseMethod
-}
-
 func NewExtRouter() *RouterExt {
 	router := &RouterExt{
-		Router: &server.Router{
-			Engine:            gin.Default(),
-			IRouterBaseMethod: &RouterBaseMethodExt{},
-		},
+		Router: server.NewRouter(),
 	}
 	router.Init()
 	return router
 }
 
 func (r *RouterExt) Init() {
-	r.Router.Init()
 	apiV1PlatformSerial := r.Group("/api/v1").Group("/:platform").Group("/:serial")
 
 	apiV1PlatformSerial.GET("/stub/source", r.sourceHandler)