// 新的 sendConnect 方法 - 严格按照协议文档
  sendConnect(nonce = null) {
    const crypto = require('crypto');
    const tempPublicKey = crypto.randomBytes(32).toString('hex');
    const tempSignature = crypto.randomBytes(64).toString('hex');

    const connectMessage = {
      type: 'req',
      id: this.nextId(),
      method: 'connect',
      params: {
        minProtocol: 3,
        maxProtocol: 3,
        client: {
          id: 'cli',
          version: '1.0.0',
          platform: process.platform,
          mode: 'operator'
        },
        role: 'operator',
        scopes: ['operator.read', 'operator.write'],
        caps: [],
        commands: [],
        permissions: {},
        auth: this.token ? { token: this.token } : {},
        locale: 'zh-CN',
        userAgent: 'wecome-openclaw-client/1.0.0',
        device: {
          id: this.deviceId,
          publicKey: tempPublicKey,
          signature: tempSignature,
          signedAt: Date.now(),
          nonce: nonce || crypto.randomUUID()
        }
      }
    };

    console.log('[OpenClaw] Sending connect request');
    this.send(connectMessage);
  }