fix(vxlan): корректно экспортировать параметры RouterOS

lib/data.ts

@@ -213,6 +213,7 @@ export interface VxlanTunnel {
   remoteVteps: string[]  // remote VTEP IPs (unicast-flood)
   l2mtu: number
   arpProxy: boolean
+  arpMode?: "disabled" | "enabled" | "local-proxy-arp" | "proxy-arp" | "reply-only"
   macLearning: boolean
   comment: string
   enabled: boolean