feat: Add model request rate limiting functionality

router/relay-router.go

@@ -24,6 +24,7 @@ func SetRelayRouter(router *gin.Engine) {
 	}
 	relayV1Router := router.Group("/v1")
 	relayV1Router.Use(middleware.TokenAuth())
+	relayV1Router.Use(middleware.ModelRequestRateLimit())
 	{
 		// WebSocket 路由
 		wsRouter := relayV1Router.Group("")