📝 docs(readme): 新增项目 Star 增长趋势图与动态状态徽章

- 状态徽章：顶部引入 Shields.io 徽章，实时展示当前总 Star 数与全资源累计下载量
- 增长趋势：底部区域新增 Star History 的动态增长曲线图表
- 兼容性修复：将 HTML `<picture>` 语法回退为标准 Markdown 图片格式，解决部分本地开发工具的预览问题
- 国际化同步：中美双语（README.md 与 README.zh-CN.md）同步部署展示更新

README.md

@@ -216,7 +216,13 @@ External contributors should open pull requests directly against `main`.
 
 ## Star History
 
-[![Star History Chart](https://api.star-history.com/svg?repos=Syngnat/GoNavi&type=Date)](https://star-history.com/#Syngnat/GoNavi&Date)
+<a href="https://star-history.com/#Syngnat/GoNavi&Date">
+ <picture>
+   <source media="(prefers-color-scheme: dark)" srcset="https://api.star-history.com/svg?repos=Syngnat/GoNavi&type=Date&theme=dark" />
+   <source media="(prefers-color-scheme: light)" srcset="https://api.star-history.com/svg?repos=Syngnat/GoNavi&type=Date" />
+   <img alt="Star History Chart" src="https://api.star-history.com/svg?repos=Syngnat/GoNavi&type=Date" />
+ </picture>
+</a>
 
 ## Links
 

README.zh-CN.md

@@ -199,7 +199,13 @@ sudo apt-get install -y libgtk-3-0 libwebkit2gtk-4.0-37 libjavascriptcoregtk-4.0
 
 ## Star History (Star 增长趋势)
 
-[![Star History Chart](https://api.star-history.com/svg?repos=Syngnat/GoNavi&type=Date)](https://star-history.com/#Syngnat/GoNavi&Date)
+<a href="https://star-history.com/#Syngnat/GoNavi&Date">
+ <picture>
+   <source media="(prefers-color-scheme: dark)" srcset="https://api.star-history.com/svg?repos=Syngnat/GoNavi&type=Date&theme=dark" />
+   <source media="(prefers-color-scheme: light)" srcset="https://api.star-history.com/svg?repos=Syngnat/GoNavi&type=Date" />
+   <img alt="Star History Chart" src="https://api.star-history.com/svg?repos=Syngnat/GoNavi&type=Date" />
+ </picture>
+</a>
 
 ## 友情链接