- Add used-car pages: list, detail, create, edit, mine
- Add CarCard and PriceModal components
- Fix API response interceptor to accept both code 200 and 0
- Fix detail page: was incorrectly using edit page template
- Fix edit page: remove res.code check after API call
- Add image URL processing (localhost → localhost:8787)
- Add i18n translations for used-car module in 5 languages
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>