Adds five optional var_jitsi_* settings to the install script. All default
to empty, which keeps the previous LAN-only behaviour (container IP,
self-signed certificate):
- var_jitsi_domain public hostname instead of the container IP
- var_jitsi_le_email Let's Encrypt via the packaged debconf option
- var_jitsi_public_ip static NAT mapping in jvb.conf (JVB 2.3+)
- var_jitsi_admin_user secure domain: only authenticated users create rooms
- var_jitsi_admin_pass password for that user (generated when empty)
Tested on Proxmox VE 9.2 as unprivileged Debian 13 LXC, both with all
variables set (self-signed) and with none set.
Co-authored-by: klanghans <13657862+klanghans@users.noreply.github.com>
Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com>