Adds the ability to translate help center articles to other languages using Captain's LLM infrastructure. Translated articles are created as drafts linked to the source article.
Fixes
https://linear.app/chatwoot/issue/CW-6901/translate-article-to-another-language
**How to test**
1. Navigate to Help Center → Articles for a portal with multiple locales
2. Click the three-dot menu on any article → "Translate"
3. Select a target language and category → click Translate
4. Switch to the target locale — the translated article appears as a
draft
5. Try translating the same article again — a warning shows the existing
translation with a link to open it in a new tab
6. Click "Overwrite and translate" to replace the existing translation
https://github.com/user-attachments/assets/1d2e991b-f0ac-403a-bcc1-2181b5731ea4
# Pull Request Template
## Description
This PR includes the following updates:
1. Updated the design system color tokens by introducing new tokens for
surfaces, overlays, buttons, labels, and cards, along with refinements
to existing shades.
2. Refreshed both light and dark themes with adjusted background,
border, and solid colors.
3. Replaced static Inter font files with the Inter variable font
(including italic), supporting weights from 100–900.
4. Added custom font weights (420, 440, 460, 520) along with custom
typography classes to enable more fine-grained and consistent typography
control.
## Type of change
- [x] New feature (non-breaking change which adds functionality)
## Checklist:
- [x] My code follows the style guidelines of this project
- [x] I have performed a self-review of my code
- [x] I have commented on my code, particularly in hard-to-understand
areas
- [ ] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [x] New and existing unit tests pass locally with my changes
- [ ] Any dependent changes have been merged and published in downstream
modules
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Co-authored-by: Pranav <pranav@chatwoot.com>
