Allow mdns and llmnr to be None in NetworkInterface (#285)

Disabled interfaces (e.g. unconfigured VLANs) return null for mdns and
llmnr fields. Update the model to accept None and add a test fixture and
assertions to cover this case.

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: agners

aiohasupervisor/models/network.py

@@ -141,8 +141,8 @@ class NetworkInterface(ResponseData):
     ipv6: IPv6
     wifi: Wifi | None
     vlan: Vlan | None
-    mdns: MulticastDnsMode
-    llmnr: MulticastDnsMode
+    mdns: MulticastDnsMode | None
+    llmnr: MulticastDnsMode | None
 
 
 @dataclass(frozen=True, slots=True)

tests/fixtures/network_info.json

@@ -31,6 +31,36 @@
         "vlan": null,
         "mdns": "default",
         "llmnr": "default"
+      },
+      {
+        "interface": "end0.10",
+        "type": "vlan",
+        "enabled": false,
+        "connected": false,
+        "primary": false,
+        "mac": "00:11:22:33:44:55",
+        "ipv4": {
+          "method": "disabled",
+          "address": [],
+          "nameservers": [],
+          "gateway": null,
+          "ready": false,
+          "route_metric": null
+        },
+        "ipv6": {
+          "method": "disabled",
+          "address": [],
+          "nameservers": [],
+          "gateway": null,
+          "ready": false,
+          "route_metric": null,
+          "addr_gen_mode": "default",
+          "ip6_privacy": "default"
+        },
+        "wifi": null,
+        "vlan": null,
+        "mdns": null,
+        "llmnr": null
       }
     ],
     "docker": {

tests/test_network.py

@@ -56,6 +56,12 @@ async def test_network_info(
     assert result.interfaces[0].mdns is MulticastDnsMode.DEFAULT
     assert result.interfaces[0].llmnr is MulticastDnsMode.DEFAULT
 
+    assert result.interfaces[1].interface == "end0.10"
+    assert result.interfaces[1].type == "vlan"
+    assert result.interfaces[1].enabled is False
+    assert result.interfaces[1].mdns is None
+    assert result.interfaces[1].llmnr is None
+
     assert result.docker.interface == "hassio"
     assert result.docker.address.compressed == "172.30.32.0/23"
     assert result.docker.gateway.compressed == "172.30.32.1"