device-session-lifecycle

Hunt, fix, and prevent device session lifecycle bugs in AutoMobile: startDevice/killDevice, device session UUIDs, boot readiness, daemon start/stop/restart, session expiry/release, pool state races, and flaky lifecycle tests. Use when a bug involves sessions binding to the wrong device, devices stuck busy/idle/ghost, boot or shutdown hangs, daemon churn or 'Session not found', stream frames routed to the wrong…