打包体积要监控起来

- [x] bundle size 的 CI 和 badge
- [x] 支持 Tree Shaking
- [x] 检查和移除无用的依赖包
- [x] 复用 rc-util 和最新的 rc-xxx 版本
- [ ] 开启使用 @babel/runtime

避免 antd 辛辛苦苦省下的体积被挥霍了。

Review the existing bundle-size CI, badge, tree-shaking setup, and dependency configuration mentioned in the issue, then trace how Babel is configured for the package. Enable @babel/runtime without undoing the completed bundle-size and dependency work, and verify the CI bundle-size check still passes.

Written by the indexing model from the issue text.