endpointOptions.retryRate

端点每秒发送的 QUIC 重试包的最大数量。这是一个全局速率限制（不是每个主机），限制服务器整体的重试响应速率，防止伪造源的洪水占用无限资源。

🌐 The maximum number of QUIC retry packets the endpoint will send per second. This is a global rate limit (not per-host) that caps the total server-wide retry response rate, preventing spoofed-source floods from consuming unbounded resources.