Users were confused about how to access the bootstrap token in Proxmox
LXC containers. They were trying to use the Proxmox web console instead
of 'pct enter' from the Proxmox host.
This adds explicit instructions in the FirstRunSetup UI that show:
- pct enter <ctid> for interactive access
- pct exec <ctid> -- cat /etc/pulse/.bootstrap_token for direct retrieval
- Clear indication that commands should be run from Proxmox host
The instructions only display when the deployment is not Docker and the
bootstrap token path is /etc/pulse/.bootstrap_token (indicating LXC).
Fixes#681
14ac4bbb8b