Operator guides

Summaries of platform-admin-relevant runbooks from n1-cloud/docs/runbook/. Each guide leads with nayaone-admin and cites the source runbook for the full procedure.

Guide	Source runbook
Pulumi converge	pulumi-runtime.runbook.md
Credential health	credential-health-monitoring.runbook.md
Member sync	member-sync.runbook.md
Fleet reroll	reroll-cli.runbook.md
Oracle + stack locks	pulumi-runtime.runbook.md + box-troubleshooting.runbook.md