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Hostname set (complement existing get)

Objective​

Add the ability to set the system hostname. Currently only system.hostname.get exists. Ansible's hostname module is heavily used for provisioning. This is a small but important CRUD gap.

API Endpoints​

PUT    /node/hostname      - Set system hostname

Operations​

  • system.hostname.update (modify)

Provider​

  • Extend existing internal/provider/node/host/
  • Add SetHostname(name string) error to Provider interface
  • Implementation: hostnamectl set-hostname via cmdexec
  • Update /etc/hostname for persistence

Notes​

  • Hostname changes may require service restarts
  • Validate hostname format (RFC 1123)
  • Scopes: system:write
  • Small feature — could be done alongside any other system work