v2.7.1

• 修复通过 IPv6 访问时，缓冲池无法被释放，导致播放一段时间后资源占满而卡死
• 修复在多个客户端访问同一个组播流时，周期性组播重加入不成功问题
• 修复 Web UI 工作进程统计里，"已发送"在客户端断开时清零问题

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• Fixed buffer pool not being released when accessing via IPv6, causing resource exhaustion and freezing after prolonged playback
• Fixed periodic multicast rejoin failing when multiple clients access the same multicast stream
• Fixed "Sent" counter in Web UI worker statistics resetting to zero when a client disconnects