- Fix tag using category_color instead of its own color when editing
- Add FormData auto-detection interceptor in client.ts (root cause of 422)
- Remove redundant Content-Type overrides from all 5 upload endpoints
- Fix falsy id check (id: 0 treated as null) with strict comparison
- Await invalidateQueries to prevent stale dropdown data
- API client with full CRUD, broadcast, activate/deactivate, unpin endpoints
- List page with active/inactive badges, action buttons, pagination
- Create/edit form with content editor, media upload, display settings toggles
- Routes and navigation in admin marketing group
- i18n translations for ru, en, fa, zh
