fix(vm_provision_mixin): get_vm_status hit a non-existent guest-agent path

agent.network_get_interfaces.get() built the URL path segment literally
("network_get_interfaces"), but the real Proxmox REST endpoint uses
hyphens ("network-get-interfaces") and must be reached via agent(...) as
a callable resource — the underscored attribute path 404ed silently on
every poll, so wait_for_ip always ran out the full timeout even though
the guest agent was reporting the IP to Proxmox correctly the whole time.

Also stopped assuming interfaces[0] is the real NIC — the guest agent
commonly reports "lo" first, matching the working pattern already used
in vm_mixin.py (skip "lo", require ip-address-type == "ipv4").

tests/test_vm_provision_mixin.py

@@ -335,9 +335,12 @@ def test_get_vm_status_with_wait_for_ip():
     mock_node.qemu.return_value = mock_vm
     mock_vm.config.get.return_value = {"net0": "virtio,bridge=vmbr0,tag=10"}
 
-    # Mock guest-agent: first no IP, then with IP
-    mock_agent = MagicMock()
-    mock_agent.network_get_interfaces.get.side_effect = [
+    # The real Proxmox REST path is "network-get-interfaces" (hyphens),
+    # reached via agent(...) as a callable resource, not dotted attribute
+    # access — mock that exact call shape.
+    mock_agent_call = MagicMock()
+    mock_vm.agent.return_value = mock_agent_call
+    mock_agent_call.get.side_effect = [
         {"result": [{"name": "eth0", "hardware-address": "aa:bb:cc:dd:ee:00"}]},
         {
             "result": [
@@ -349,16 +352,51 @@ def test_get_vm_status_with_wait_for_ip():
             ]
         },
     ]
-    mock_vm.agent = mock_agent
 
     with patch("time.sleep"):
         result = mixin.get_vm_status("101", wait_for_ip=True, timeout=30, poll_interval=1)
 
+    mock_vm.agent.assert_called_with("network-get-interfaces")
     assert result["status"] == "running"
     assert result["ip_address"] == "10.0.0.100"
     assert result["mac_address"] == "aa:bb:cc:dd:ee:00"
 
 
+def test_get_vm_status_skips_loopback_interface():
+    """The guest agent commonly reports "lo" before the real NIC — it must
+    be skipped rather than mistaken for the VM's address."""
+    mixin = ProxmoxVMProvisionMixin()
+
+    mock_node = MagicMock()
+    mixin._node_api = MagicMock(return_value=mock_node)
+
+    mock_vm = MagicMock()
+    mock_node.qemu.return_value = mock_vm
+    mock_vm.config.get.return_value = {"net0": "virtio,bridge=vmbr0"}
+
+    mock_agent_call = MagicMock()
+    mock_vm.agent.return_value = mock_agent_call
+    mock_agent_call.get.return_value = {
+        "result": [
+            {
+                "name": "lo",
+                "hardware-address": "00:00:00:00:00:00",
+                "ip-addresses": [{"ip-address": "127.0.0.1", "ip-address-type": "ipv4"}],
+            },
+            {
+                "name": "eth0",
+                "hardware-address": "aa:bb:cc:dd:ee:00",
+                "ip-addresses": [{"ip-address": "10.0.0.101", "ip-address-type": "ipv4"}],
+            },
+        ]
+    }
+
+    with patch("time.sleep"):
+        result = mixin.get_vm_status("101", wait_for_ip=True, timeout=30, poll_interval=1)
+
+    assert result["ip_address"] == "10.0.0.101"
+
+
 def test_get_vm_status_timeout_waiting_for_ip():
     """get_vm_status raises RuntimeError if IP acquisition times out."""
     mixin = ProxmoxVMProvisionMixin()
@@ -372,11 +410,11 @@ def test_get_vm_status_timeout_waiting_for_ip():
     mock_vm.config.get.return_value = {"net0": "virtio,bridge=vmbr0"}
 
     # Mock guest-agent that never returns IP
-    mock_agent = MagicMock()
-    mock_agent.network_get_interfaces.get.return_value = {
+    mock_agent_call = MagicMock()
+    mock_vm.agent.return_value = mock_agent_call
+    mock_agent_call.get.return_value = {
         "result": [{"name": "eth0", "hardware-address": "aa:bb:cc:dd:ee:00"}]
     }
-    mock_vm.agent = mock_agent
 
     with pytest.raises(RuntimeError, match="timeout|IP"):
         with patch("time.sleep"):