- Add firewall include script (/etc/firewall.secubox-wan) for fw4 compatibility
- Add hotplug script (/etc/hotplug.d/iface/99-secubox-wan) for WAN interface events
- Configure firewall include in postinst (type=script for fw4)
- secubox-core bumped to 0.9.0-2
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>