provisionCluster pushes the agent, runs keygen on the node (keys never
leave it), has the node verify MAIN's signed health before any token is
minted, then installs epoch 1 and starts the agent, which completes with
enrol_complete. The API off, no extension or no agent binary leaves the
node legacy; only an extension refusal or an unreachable API fails the
install. A keepalive in service boot and the root cron runs the agent on
enrolled nodes, and stops for good when MAIN has stopped the node.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Es8UhyPS8MNjuYTagqfGWi
