为第二大脑添加国内IM适配章节

[AlexAnys]

在 second-brain.md 底部添加中国用户适配章节，推荐钉钉 Stream 模式作为 Telegram 的最佳替代方案。

变更内容

• 标题下方添加国内适配提示（钉钉 / 飞书 / 企业微信）
• 新增「中国用户适配」章节，包含：
  • 方案对比表（钉钉 Stream / 飞书 / 企业微信 / 个人微信）
  • 钉钉 Stream 机器人详细说明（推荐首选）
  • 飞书机器人接入说明
  • 企业微信自建应用说明
  • 一键部署方案（OpenClaw-Docker-CN-IM、openclaw-china）
  • 个人微信风险警告（项目红线）
  • 安全提示

原则

• 完整保留原有内容，未做任何修改
• 所有信息基于已验证的社区实践

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Remove personal WeChat repo from enterprise WeCom guidance

The enterprise WeCom section links dingxiang-me/OpenClaw-Wechat, which appears to be a personal WeChat integration, while this same document later labels personal WeChat as a project redline due to ban/legal risk. Including that repo under the enterprise setup path can send users to the exact non-recommended route the page warns against, so this reference should be replaced with a WeCom-specific resource.

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