fix(configuration): omit interface-name when not explicitly provided to avoid predictable naming mismatch

roles/configuration/tasks/network_nm.yml

@@ -2,12 +2,7 @@
 - name: Copy NetworkManager keyfile per interface
   vars:
     configuration_iface: "{{ item }}"
-    configuration_iface_name: >-
-      {{
-        item.name
-        if (item.name | default('') | string | length) > 0
-        else (configuration_detected_interfaces[idx] | default('eth' ~ idx))
-      }}
+    configuration_iface_name: "{{ item.name | default('') }}"
     configuration_net_uuid: "{{ ('LAN-' ~ idx ~ '-' ~ hostname) | ansible.builtin.to_uuid }}"
   ansible.builtin.template:
     src: network.j2

roles/configuration/templates/network.j2

@@ -2,7 +2,10 @@
 id=LAN-{{ idx }}
 uuid={{ configuration_net_uuid }}
 type=ethernet
+autoconnect-priority=10
+{% if configuration_iface_name | length > 0 %}
 interface-name={{ configuration_iface_name }}
+{% endif %}
 
 [ipv4]
 {% set iface = configuration_iface %}