{
  "users": {
    "telegram:100": { "currentSession": { "name": "one", "dir": "/workspace/one" }, "lastSessionId": "session-one", "settings": { "backend": "claude" } },
    "person@example.test": { "currentSession": { "name": "two", "dir": "/workspace/two" }, "codexSessionId": "thread-two", "settings": { "backend": "codex" } }
  }
}