During February 2025, Chen JH enhanced the tisfeng/lobe-chat repository by focusing on Azure OpenAI integration, specifically refining the role assignment logic for Azure OpenAI models to improve reliability across deployments. Using TypeScript and leveraging full stack development skills, Chen updated the URL masking regular expression to accommodate recent changes in Azure service endpoints, thereby strengthening security and reducing the risk of sensitive URL exposure. The work included a targeted bug fix addressing role mapping and endpoint handling, ensuring more accurate routing and compliance with QA standards. These changes contributed to a more stable and secure Azure OpenAI deployment process.