refactor: migrate models to canonical module locations
- Move Product/ProductTranslation to app/modules/catalog/models/
- Move VendorOnboarding to app/modules/marketplace/models/
- Delete legacy re-export files for marketplace models:
- letzshop.py, marketplace.py, marketplace_product.py
- marketplace_product_translation.py, marketplace_import_job.py
- Delete legacy product.py, product_translation.py, onboarding.py
- Update all imports across services, tasks, tests to use module locations
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Samir Boulahtit
0c63f387aa