--register doesn't create a impi interface and fails finding it later

[phil-flip]

Describe the bug
When running netbox_agent --register it adds most of the stuff. But aborts with

DEBUG:urllib3.connectionpool:https://REDACTED:443 "GET /api/dcim/interfaces/?device_id=105&mgmt_only=True&limit=0 HTTP/1.1" 200 52
Traceback (most recent call last):
  File "/root/.local/bin/netbox_agent", line 7, in <module>
    sys.exit(main())
             ^^^^^^
  File "/root/.local/pipx/venvs/netbox-agent/lib/python3.11/site-packages/netbox_agent/cli.py", line 63, in main
    return run(config)
           ^^^^^^^^^^^
  File "/root/.local/pipx/venvs/netbox-agent/lib/python3.11/site-packages/netbox_agent/cli.py", line 56, in run
    server.netbox_create_or_update(config)
  File "/root/.local/pipx/venvs/netbox-agent/lib/python3.11/site-packages/netbox_agent/server.py", line 425, in netbox_create_or_update
    self.network.create_or_update_netbox_network_cards()
  File "/root/.local/pipx/venvs/netbox-agent/lib/python3.11/site-packages/netbox_agent/network.py", line 507, in create_or_update_netbox_network_cards
    ret, interface = self.create_or_update_cable(
                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/.local/pipx/venvs/netbox-agent/lib/python3.11/site-packages/netbox_agent/network.py", line 619, in create_or_update_cable
    nb_mgmt_ip = nb.ipam.ip_addresses.get(interface_id=nb_mgmt_int.id)
                                                       ^^^^^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'id'

Because the OS is not aware of the impi mgmt port, so /api/dcim/interfaces/?device_id=105&mgmt_only=True&limit=0 returns no device as there were not created at an earlier step of the script.

Expected behavior
Add the hypervisor-server without any errors and finish linking all the Proxmox network interfaces together.

Configuration file

# Netbox configuration
netbox:
  url: 'https://REDACTED'
  token: REDACTED

# Network configuration
network:
  # Regex to ignore interfaces
  ignore_interfaces: "(dummy.*|docker.*|lo)"
  # Regex to ignore IP addresses
  ignore_ips: (127\.0\.0\..*)
  # enable auto-cabling by parsing LLDP answers
  lldp: true

device:
  server_role: "Server"

tenant:
  driver: "cmd:echo REDACTED"
  regex: "(.*)"

# Enable hypervisor support
virtual:
  # enables references to being a VM - 2025-11-03 REDACTED
  enabled: false
  hypervisor: true
  cluster_name: REDACTED
  list_guests_cmd: qm list | awk 'NR>1 {print $2}'

# Enable datacenter location feature in Netbox
datacenter_location:
  driver: "cmd:echo REDACTED"
  regex: "(.*)"

# Enable local inventory reporting
inventory: true
process_virtual_drives: true
force_disk_refresh: true

Environment:

• OS: Debian GNU/Linux 12 (bookworm) - Proxmox Virtual Environment 8.0.3
• NetBox Community v4.4.5-Docker-3.4.1
• Netbox agent version: no idea where to find that...

Additional context

• I had a different error before, but that was because the switch didnt have a port marked as a mgmt-port.
• I was thinking about creating it manually, but it always attempts to remove it. So I was thinking about making a feature request to ignore any items with a certain tag in netbox. But if this is the only crash I am going to encounter, a feature like that might not be necessary.