bridge panic error

[XTeam-Wing]

panic: send on closed channel

goroutine 99501 [running]:
github.com/chainreactors/rem/protocol/cio.(*Channel).Send(0xc008174cc0, 0xf6a, {0xaede00?, 0xc00e272bd0})
/home/runner/work/rem-community/rem-community/protocol/cio/chan.go:152 +0x197
github.com/chainreactors/rem/agent.(*Bridge).send(0xc009f28080, {0xaedd20?, 0xc007324bc0?})
/home/runner/work/rem-community/rem-community/agent/bridge.go:182 +0x65
github.com/chainreactors/rem/agent.(*Bridge).Close(0xc009f28080)
/home/runner/work/rem-community/rem-community/agent/bridge.go:234 +0x8d
github.com/chainreactors/rem/agent.NewBridgeWithConn.func1()
/home/runner/work/rem-community/rem-community/agent/bridge.go:51 +0xaf
created by github.com/chainreactors/rem/agent.NewBridgeWithConn
/home/runner/work/rem-community/rem-community/agent/bridge.go:46 +0x31a

[M09Ic]

我这边对了下当前主线，这个 issue 更像是“请先按最新实现复测”的状态。

现在 close/send 这条链路已经补了并发安全处理，并且有专门回归测试覆盖：

• send during close
• sender / receiver concurrent close
• sender exits on channel close

所以从使用层面上，这条没有新的参数要求，也不需要额外 workaround。
建议先直接用当前 master / nightly 复测一次。

如果还能复现，麻烦补一个最小复现场景：

• 具体命令
• 是 -l / -r 哪种 serve
• 是单连接、alias bridge 还是 relay
• 新的 panic 栈

这样才好继续收敛是不是还有另外一条 bridge close 路径没覆盖到。