fix: get_interfaces_ip() uses overview/export statt addresses/export

Das /api/interfaces/addresses/export Endpoint existiert nicht auf allen
OPNsense-Versionen. Stattdessen wird /api/interfaces/overview/export
genutzt (gleiche Quelle wie get_interfaces()), um addr4/addr6 zu parsen.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

napalm_opnsense/opnsense.py

@@ -230,7 +230,7 @@ class OPNsenseDriver(FirewallDriver):
     def get_interfaces_ip(self) -> Dict[str, Dict[str, Any]]:
         """Return IP addresses grouped by interface name.
 
-        Calls ``GET /api/interfaces/addresses/export``.
+        Uses ``GET /api/interfaces/overview/export`` (same source as get_interfaces).
 
         Structure::
 
@@ -241,17 +241,46 @@ class OPNsenseDriver(FirewallDriver):
                 }
             }
         """
-        data = self._get("/api/interfaces/addresses/export")
+        import ipaddress
+
+        data = self._get("/api/interfaces/overview/export")
+        items: list = data if isinstance(data, list) else data.get("interfaces", [])
         result: Dict[str, Dict[str, Any]] = {}
 
-        for item in data.get("items", []):
-            ifname: str = item["interface"]
-            ip: str = item["address"]
-            prefix: int = int(item["prefix"])
-            family = "ipv6" if ":" in ip else "ipv4"
-
+        def _add(ifname: str, cidr: str, family: str) -> None:
+            try:
+                iface_obj = ipaddress.ip_interface(cidr)
+                ip = str(iface_obj.ip)
+                prefix = iface_obj.network.prefixlen
                 result.setdefault(ifname, {"ipv4": {}, "ipv6": {}})
                 result[ifname][family][ip] = {"prefix_length": prefix}
+            except ValueError:
+                pass
+
+        for iface in items:
+            name: str = iface.get("device") or iface.get("name", "")
+            if not name:
+                continue
+            addr4: str = iface.get("addr4", "")
+            addr6: str = iface.get("addr6", "")
+            if addr4:
+                _add(name, addr4, "ipv4")
+            if addr6:
+                _add(name, addr6, "ipv6")
+            if not addr4:
+                for entry in iface.get("ipv4") or []:
+                    ip_field = entry.get("ipaddr") or entry.get("ip", "")
+                    subnet = entry.get("subnetbits") or entry.get("prefix_length")
+                    cidr = f"{ip_field}/{subnet}" if subnet and "/" not in ip_field else ip_field
+                    if cidr:
+                        _add(name, cidr, "ipv4")
+            if not addr6:
+                for entry in iface.get("ipv6") or []:
+                    ip_field = entry.get("ipaddr") or entry.get("ip", "")
+                    prefix = entry.get("prefixlen") or entry.get("prefix_length")
+                    cidr = f"{ip_field}/{prefix}" if prefix and "/" not in ip_field else ip_field
+                    if cidr:
+                        _add(name, cidr, "ipv6")
 
         return result