Converted secubox-app-jellyfin, secubox-app-mailserver, and added
secubox-app-roundcube to use LXC containers instead of Docker.
Changes:
- jellyfinctl: Now uses LXC at 192.168.255.31
- mailserverctl: New controller for Alpine LXC with Postfix/Dovecot
- roundcubectl: New package for Roundcube webmail LXC
All controllers support:
- Bootstrap Alpine rootfs using static apk
- LXC configuration generation
- HAProxy integration with waf_bypass
- Start/stop/status commands
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>