feat: server 包新增 WithLimitLift 和 WithConnectionMessageChannelSize 函数，用于限制服务器最大生命周期及连接的消息写入通道大小

server/server.go

@@ -31,7 +31,11 @@ import (
 // New 根据特定网络类型创建一个服务器
 func New(network Network, options ...Option) *Server {
 	server := &Server{
-		runtime:      &runtime{messagePoolSize: DefaultMessageBufferSize, messageChannelSize: DefaultMessageChannelSize},
+		runtime: &runtime{
+			messagePoolSize:        DefaultMessageBufferSize,
+			messageChannelSize:     DefaultMessageChannelSize,
+			connMessageChannelSize: DefaultConnectionChannelSize,
+		},
 		option:       &option{},
 		network:      network,
 		online:       concurrent.NewBalanceMap[string, *Conn](),