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Describe the bug
When transitioning from legacy to the new configuration interface, the generated config is invalid for net30 configurations and won't start

To Reproduce

Steps to reproduce the behavior:

1. Go to 'Generate OpenVPN Server config in new UI'
2. Use 'net30' as 'Topology'
3. Apply
4. See error

Expected behavior

OpenVPN instance starts normally

Relevant log files

/usr/local/opnsense/scripts/openvpn/ovpn_service_control.php: The command '/usr/local/sbin/openvpn --config '/var/etc/openvpn/instance-84b64fa6-83fe-41e9-9862-9d7816065e4b.conf'' returned exit code '1', the output was ''
Options error: --client-connect requires --mode server

Environment

OPNsense 24.1.1-amd64
FreeBSD 13.2-RELEASE-p9
OpenSSL 3.0.13