- Replace lib/apm with backend/dbus and backend/eepm clients
- Add Redux-like store with state management and actions
- Add service layer (update, history, notification, scheduler)
- Add UI components (category_row, package_row) and pages
- Add model types (Package, EventData, ActiveUpdate, History)
- Add pkg/storage for settings and history persistence

- Replace lib/apm with backend/dbus and backend/eepm clients
- Add Redux-like store with state management and actions
- Add service layer (update, history, notification, scheduler)
- Add UI components (category_row, package_row) and pages
- Add model types (Package, EventData, ActiveUpdate, History)
- Add pkg/storage for settings and history persistence

- Replace CheckPlayUpdates stub with real D-Bus call to PlayListUpdates
- Add PlayUpdateApp model and display play apps count in category row
- Pass EventType through store pipeline to UI
- Only show NOTIFICATION events in log view, not PROGRESS