feat: cross-device support — all Apple devices, cloud tool delegation, PWA

feat: OS auto-detect, onboarding spelling retry, device registration, cross-device context

fix: increase all timeouts to 180s, extract tools before STM, add multi-step tool chaining, differentiate listener errors

chore: snapshot current workspace state

feat: add device control, app automation, tests, and other updates

feat: add cloud DB, user profiles, daily routines & work session tracking