媒体流发送管理

// iOS / Mac
func enableSendMediaStream(_ trackType: AoqTrackType, enable: Bool)

// Android
void enableSendMediaStream(AoqTrackType trackType, boolean enable)

// OHOS (ArkTS)
enableSendMediaStream(trackType: AoqTrackType, enable: boolean): void

// 连接前关闭音视频发送，避免模型未就绪时收到数据
engine.enableSendMediaStream(.audio, enable: false)
engine.enableSendMediaStream(.video, enable: false)

// 发起连接
engine.connect(config)

func onDataMsg(_ msg: AoqDataMsg) {
    guard let obj = try? JSONSerialization.jsonObject(with: msg.data) as? [String: Any],
          let type = obj["type"] as? String else { return }

    if type == "session.updated" {
        // AI 侧已确认会话配置，开启媒体发送
        engine.enableSendMediaStream(.audio, enable: true)
        engine.enableSendMediaStream(.video, enable: true)
    }
}