- Add 'insights' to TaskView type for view state persistence
- Add InsightsView routing in App.tsx with scoped persistence
- Add Insights nav item to Header with icon and keyboard shortcut
- Add Insights nav item to MobileNavBar
- Add comprehensive tests for App, Header, and MobileNavBar view switching
- Add useViewState tests for scoped persistence
- Extract view state, project actions, and task handler concerns from AppInner into dedicated hooks
- Add AppModals component to centralize modal rendering and related props wiring
- Inline thin aliases and complete AppInner cleanup after moving responsibilities out
- Add unit tests for useViewState, useProjectActions, and useTaskHandlers hooks
