Revert "Revert "优化服务退出流程，增加中间件文档""

This reverts commit 64ed43b7ca.

server/internal/logic/tcpclient/auth.go

@@ -75,7 +75,7 @@ func (s *sAuthClient) Start(ctx context.Context) {
 
 // Stop 停止服务
 func (s *sAuthClient) Stop(ctx context.Context) {
-	if s.client != nil {
+	if s.client != nil && !s.client.IsStop() {
 		s.client.Stop()
 		g.Log().Debug(ctx, "AuthClient stop..")
 	}