- Create ErrorBoundary and ModalErrorBoundary components with recovery actions (retry, reload)
- Add error boundary CSS styles with fallback UI styling
- Wrap main dashboard pages (Board, List, Settings, Agents) with PageErrorBoundary in App.tsx
- Wrap all key modals (task detail, planning, subtask breakdown, mission) with ModalErrorBoundary in AppModals.tsx
- Wrap entire App with RootErrorBoundary in main.tsx as final safety net
- Add 11 comprehensive ErrorBoundary tests covering all rendering and error scenarios
- Optimize dashboard Vite output for mobile and include vite/client types in app typecheck
- Add PWA support with manifest, service worker, icons, and client registration hooks
- Add a mobile workspace package with Capacitor config and live-reload scripts for local development
- Add a dedicated GitHub Actions mobile pipeline and update mobile workflow documentation
- Add dashboard tests for build output, mobile scripts, and PWA asset coverage
