Lab 3 — Sessions and resume

Use this lab’s provider.env.example and the preflight. In an empty disposable workspace, start copilot -C "$workdir" -i "Remember the synthetic queue name orders-demo; say noted.". Exit and run copilot -C "$workdir" --continue in the same isolated COPILOT_HOME; ask which queue was given. Compare to a new session in the same workspace. Check copilot sessions --help or /session for recorded session identifiers. Keep transcripts private. This tests resumption, not atomic tool-result recovery, JSONL history validation or exactly-once replay of mutating tools.