* Add Chinese README translation and link badge
- Add README_ZH.md with full Chinese translation
- Add README badge linking to Chinese version
* docs(zh-Hans): rename to README_zh-Hans.md, replace shields.io badge with text link
Addressing review feedback from AkazaRenn:
- Rename README_ZH.md to README_zh-Hans.md for standard IETF language tag
- Remove shields.io external badge, use plain text language switcher instead
- Add bidirectional language links in both READMEs
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
---------
Co-authored-by: juncheng.ye <yechen_0@foxmail.com>
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
