OpenClaw 2.0 foundation and collaboration overhaul

OpenClaw 2.0's guided setup, redesigned browser UI, SQLite migration, live sessions, scoped approvals, computer control, credential handling, persistent workspaces, and shared cloud sessions are now well documented. Smart-home and local-first deployments broaden the use-case and adoption story, while reviews continue to stress backup, compatibility, permission, cost, and isolation precautions; shared sessions remain collaboration environments rather than hostile multi-tenant boundaries.