媒體流發送管理

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

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

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

// 串連前關閉音視頻發送，避免模型未就緒時收到資料
engine.enableSendMediaStream(.audio, enable: false)
engine.enableSendMediaStream(.video, enable: false)

// 發起串連
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 側已確認會話配置，開啟媒體發送
        engine.enableSendMediaStream(.audio, enable: true)
        engine.enableSendMediaStream(.video, enable: true)
    }
}