docs: add disclaimer section to README files (#655)

Author: mini2s

README.md

@@ -71,6 +71,10 @@ We welcome contributions! Please review [How To Contribute](assets/docs/devel/en
 
 Communicate via [GitHub Issues](https://github.com/zgsm-ai/costrict/issues/new/choose) or pull requests.
 
+## Disclaimer
+
+**Please note** that CoStrict, Inc does **not** make any representations or warranties regarding any code, models, or other tools provided or made available in connection with CoStrict, any associated third-party tools, or any resulting outputs. You assume **all risks** associated with the use of any such tools or outputs; such tools are provided on an **"AS IS"** and **"AS AVAILABLE"** basis. Such risks may include, without limitation, intellectual property infringement, cyber vulnerabilities or attacks, bias, inaccuracies, errors, defects, viruses, downtime, property loss or damage, and/or personal injury. You are solely responsible for your use of any such tools or outputs (including, without limitation, the legality, appropriateness, and results thereof).
+
 ## License
 
 [Apache 2.0 © 2025 CoStrict, Inc.](./LICENSE)

README.zh-CN.md

@@ -77,6 +77,10 @@ CoStrict 是由友好的用户、贡献者、提交者和项目管理委员会
 
 CoStrict项目采用 Github Forking 工作流：[CoStrict项目代码贡献流程](https://github.com/zgsm-ai/costrict/blob/main/assets/docs/devel/zh-CN/fork.md)
 
+## 免责声明
+
+**请注意**，CoStrict, Inc. **不**对与 CoStrict 相关的任何代码、模型或其他工具、任何相关的第三方工具或任何由此产生的输出作出任何陈述或保证。您承担使用任何此类工具或输出的**所有风险**；此类工具均按**“原样”**和**“可用”**的基础提供。此类风险可能包括但不限于知识产权侵权、网络漏洞或攻击、偏见、不准确、错误、缺陷、病毒、停机、财产损失或损害和/或人身伤害。您对自己使用任何此类工具或输出负全部责任（包括但不限于其合法性、适当性和结果）。
+
 ## 版权声明
 
 [Apache 2.0 © 2025 CoStrict, Inc.](./LICENSE)