# 35. Integrate business logic with Linux UI

meta:
  id: native-business-logic-migration-35
  feature: native-business-logic-migration
  priority: P1
  depends_on: [native-business-logic-migration-32, native-business-logic-migration-17]
  tags: [implementation, linux, ui]

objective:
- Connect business logic layer with GTK4 views

deliverables:
- FeedList widget connected to ViewModel
- FeedDetail widget connected to ViewModel
- AddFeed widget connected to services
- Search widget connected to SearchService
- Settings widget connected to SettingsStore
- Bookmark widget connected to BookmarkStore

tests:
- UI: Test widget renders with data
- UI: Test navigation works
- UI: Test error states displayed

acceptance_criteria:
- All widgets connected to ViewModels
- Data flows correctly
- User actions trigger updates
- Error states shown properly
- Loading states shown properly

validation:
- Run app on Linux
- Test all user flows

notes:
- Use GObject signals for updates
- Follow GNOME HIG
- Implement proper GTK patterns