docs: add Traditional Chinese documentation and README badge

[appleboy]

• Add a badge and link for Traditional Chinese documentation
• Introduce a full Traditional Chinese README with usage, features, and setup instructions

Summary by Sourcery

Add Traditional Chinese documentation support by introducing a full Traditional Chinese README and linking to it from the main README

Documentation:

• Add docs/README.zh-TW.md containing a full Traditional Chinese translation of the project README
• Update main README to include a badge and link for the Traditional Chinese documentation

[sourcery-ai]

Reviewer's Guide

Introduces Traditional Chinese documentation by adding a badge link in the main README and adding a full Traditional Chinese README file with comprehensive usage, features, and setup instructions.

File-Level Changes

Change	Details	Files
Add Traditional Chinese navigation badge to main README	Inserted繁體中文 badge and link in README.md	README.md
Introduce full Traditional Chinese README	Created docs/README.zh-TW.md as a new file Populated with translated sections: intro, badges, quick start, endpoints, features, documentation links, license	docs/README.zh-TW.md

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[sourcery-ai]

Hey there - I've reviewed your changes and they look great!

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[iFurySt]

LGTM！Thanks！