feat: setup Co-op Translator for Chinese documentation

[shogun444]

This PR sets up Co-op Translator to automatically generate Chinese (Simplified)
translations for OpenUI documentation.

Changes:

• Added GitHub Actions workflow for automated translations
• Added translator.config.json
• Created translations/zh directory

This provides a scalable i18n foundation so additional languages can be added easily.

Closes #296

[rabisg]

Given that this PR affects the GH workflow and will require a write permission, we can test it out in your fork and then merge the PR once its ready and working e2e

Also once it is working as expected please add a shields badge to the README.md for the translated version

[rabisg]

Can you please remove this. While this is something we definitely want to add in the future, it would require more work to be able to fully serve i18n content on fumadocs
https://www.fumadocs.dev/docs/internationalization/next

[rabisg]

Lets start with README for now and we can pick up docs i18n in a separate PR

[rabisg]

We need an additional step after the translation to commit it to the repo or else the translation file won't show up in the repo

[shogun444]

Updated PR - added a commit + push step after the translation so generated files are persisted to the repo.

I tested the workflow in my fork:

• The workflow triggers correctly
• The Co-op Translator step runs
• The commit + push step works as expected (creates a commit or no-op if no changes)

However, the translation step requires an LLM provider configuration (API key). Since I don’t have an API key configured in my fork, the workflow cannot complete the translation step end-to-end.

From what I’ve verified, everything up to that point is working correctly, and the translation should function as expected once the appropriate repository-level secrets are configured.

Let me know if you’d like me to adjust anything or if there’s a preferred way to handle the LLM configuration.

[rabisg]

can you remove all unrelated changes from this PR
Lets keep the scope to only Co-op translator

[shogun444]

done 👍.

[zahlekhan]

Changes, look good. I'll test it and see if it works

[shogun444]

thanks for taking a look.
let me know if there's anything I should adjust.