Optimize DNS strategy

Fix the problem that the tray is not displayed in some cases

Optimize tray

Update core

Fix some error

core/hub.go

@@ -5,9 +5,11 @@ package main
 */
 import "C"
 import (
+	"context"
 	bridge "core/dart-bridge"
 	"encoding/json"
 	"fmt"
+	"github.com/metacubex/mihomo/common/utils"
 	"os"
 	"runtime"
 	"sort"
@@ -18,7 +20,6 @@ import (
 	"github.com/metacubex/mihomo/adapter"
 	"github.com/metacubex/mihomo/adapter/outboundgroup"
 	"github.com/metacubex/mihomo/adapter/provider"
-	"github.com/metacubex/mihomo/common/utils"
 	"github.com/metacubex/mihomo/component/updater"
 	"github.com/metacubex/mihomo/config"
 	"github.com/metacubex/mihomo/constant"
@@ -27,7 +28,6 @@ import (
 	"github.com/metacubex/mihomo/log"
 	"github.com/metacubex/mihomo/tunnel"
 	"github.com/metacubex/mihomo/tunnel/statistic"
-	"golang.org/x/net/context"
 )
 
 var currentRawConfig = config.DefaultRawConfig()
@@ -225,11 +225,13 @@ func asyncTestDelay(s *C.char, port C.longlong) {
 		var params = &TestDelayParams{}
 		err := json.Unmarshal([]byte(paramsString), params)
 		if err != nil {
+			bridge.SendToPort(i, "")
 			return false, nil
 		}
 
 		expectedStatus, err := utils.NewUnsignedRanges[uint16]("")
 		if err != nil {
+			bridge.SendToPort(i, "")
 			return false, nil
 		}
 
@@ -238,7 +240,6 @@ func asyncTestDelay(s *C.char, port C.longlong) {
 
 		proxies := tunnel.ProxiesWithProviders()
 		proxy := proxies[params.ProxyName]
-		proxy.Name()
 
 		delayData := &Delay{
 			Name: params.ProxyName,