Fix Linux route probe contract and expose K1 verification after Wi-Fi apply

src/k1link/device_plugins/xgrids_k1/linux_host.py

@@ -105,7 +105,7 @@ class LinuxWifiAssociationProbe:
         self.sys_net = sys_net
         self.key = secrets.token_bytes(32)
 
-    def observe(self, *, interface_name: str | None, timeout_seconds: float = 30) -> dict:
+    def observe(self, interface_name: str | None, *, timeout_seconds: float = 30) -> dict:
         result = {
             "schema_version": 1,
             "adapter": "linux-networkmanager",