fix: 修复 README 星标曲线图失效

当前 README 中的星标历史曲线图依赖原名服务，因 GitHub 数据接口限制已无法正常展示。本次将 README 及英文版、转化草稿中的启动徽章曲线图切换到新的可用域名，确保星标曲线图恢复正常显示。

Author: OctoBored

README.md

@@ -181,7 +181,7 @@ node tools/scripts/build-readme.js --write   # 把 README 数字段 + stats.json
 
 ## ⭐ Star 一下，陪它持续更新
 
-[![Star History Chart](https://api.star-history.com/svg?repos=MisterBooo/LeetCodeAnimation&type=Date)](https://star-history.com/#MisterBooo/LeetCodeAnimation&Date)
+[![Star History Chart](https://star-history.dera.page/svg?repos=MisterBooo/LeetCodeAnimation&type=Date)](https://star-history.dera.page/#MisterBooo/LeetCodeAnimation&Date)
 
 这个项目从一张张手画动画走到今天，靠的是每一个 Star 的鼓励。
 如果它让你把某道题真正看懂了，**点个 Star** 就是对持续更新最实在的支持。

docs/README-En.md

@@ -181,7 +181,7 @@ See [`sync-workflow.md`](sync-workflow.md) and [`HOW-TO-INTERACT.md`](HOW-TO-INT
 
 ## ⭐ Star it to follow the updates
 
-[![Star History Chart](https://api.star-history.com/svg?repos=MisterBooo/LeetCodeAnimation&type=Date)](https://star-history.com/#MisterBooo/LeetCodeAnimation&Date)
+[![Star History Chart](https://star-history.dera.page/svg?repos=MisterBooo/LeetCodeAnimation&type=Date)](https://star-history.dera.page/#MisterBooo/LeetCodeAnimation&Date)
 
 This project grew from hand-drawn animations to where it is today on the encouragement of every Star.
 If it helped you truly understand a problem, **a Star** is the most concrete support for continued updates.

docs/readme-revamp/README.draft.md

@@ -181,7 +181,7 @@ node tools/scripts/build-readme.js --write   # 把 README 数字段 + stats.json
 
 ## ⭐ Star 一下，见证 299 役收官
 
-[![Star History Chart](https://api.star-history.com/svg?repos=MisterBooo/LeetCodeAnimation&type=Date)](https://star-history.com/#MisterBooo/LeetCodeAnimation&Date)
+[![Star History Chart](https://star-history.dera.page/svg?repos=MisterBooo/LeetCodeAnimation&type=Date)](https://star-history.dera.page/#MisterBooo/LeetCodeAnimation&Date)
 
 这个项目从一张张手画动画走到今天，靠的是每一个 Star 的鼓励。
 如果它让你把某道题真正看懂了，**点个 Star** 就是对持续更新最实在的支持。