docs: add sponsor (爱发电) link to README (#156)

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

README.md

@@ -265,6 +265,12 @@ The BFF layer handles API proxy (with path rewriting), SSE streaming, file uploa
 
 <!-- If the chart above doesn't load, visit https://star-history.com/#EKKOLearnAI/hermes-web-ui -->
 
+## Sponsor
+
+如果你觉得这个项目对你有帮助，欢迎支持我：
+
+<a href="https://ifdian.net/a/ekko8888"><img src="https://img.shields.io/badge/Sponsor-%E7%88%B1%E5%8F%91%E7%94%B5-orange?style=flat-square" alt="Sponsor"/></a>
+
 ## License
 
 [MIT](./LICENSE)

README_zh.md

@@ -266,6 +266,12 @@ BFF 层负责：API 代理（含路径重写）、SSE 流式推送、文件上
 
 <!-- 如上方图表未加载，可访问 https://star-history.com/#EKKOLearnAI/hermes-web-ui -->
 
+## 赞助
+
+如果你觉得这个项目对你有帮助，欢迎支持我：
+
+<a href="https://ifdian.net/a/ekko8888"><img src="https://img.shields.io/badge/Sponsor-%E7%88%B1%E5%8F%91%E7%94%B5-orange?style=flat-square" alt="Sponsor"/></a>
+
 ## 许可证
 
 [MIT](./LICENSE)