fix: VPN IP dedup, status polling, pair-a-device text

- VPN status: don't show WG IP as NostrVPN IP when tunnel not up
- VPN section polls every 15s so IP updates after pairing
- NostrVPN shows "Pair a device" when service active but no tunnel

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

neode-ui/src/views/Server.vue

@@ -214,7 +214,7 @@
             <div class="w-2 h-2 rounded-full" :class="networkData.vpnIp ? 'bg-green-400' : 'bg-white/20'"></div>
             <span class="text-xs text-white/50">NostrVPN</span>
           </div>
-          <span class="text-sm font-mono" :class="networkData.vpnIp ? 'text-white' : 'text-white/30'">{{ networkData.vpnIp || 'Not active' }}</span>
+          <span class="text-sm font-mono" :class="networkData.vpnIp ? 'text-white' : 'text-white/30'">{{ networkData.vpnIp || (networkData.vpnConnected ? 'Pair a device' : 'Not active') }}</span>
         </div>
       </div>
 
@@ -444,7 +444,7 @@
 </template>
 
 <script setup lang="ts">
-import { ref, computed, onMounted, watch } from 'vue'
+import { ref, computed, onMounted, onUnmounted, watch } from 'vue'
 import { rpcClient } from '@/api/rpc-client'
 import { useAppStore } from '@/stores/app'
 import QuickActionsCard from './server/QuickActionsCard.vue'
@@ -805,6 +805,19 @@ async function createService(name: string, port: number | null) {
 }
 
 onMounted(() => { checkTorStatus(); loadNetworkData(); loadInterfaces(); loadDiskStatus(); loadTorServices(); loadVpnPeers() })
+
+// Poll VPN status every 15s so IP updates after pairing
+const vpnPollInterval = setInterval(async () => {
+  try {
+    const vpnRes = await rpcClient.vpnStatus()
+    networkData.value.vpnConnected = vpnRes.connected
+    networkData.value.vpnProvider = vpnRes.provider ?? ''
+    networkData.value.vpnIp = (vpnRes.ip_address ?? '').replace(/\/\d+$/, '')
+    networkData.value.wgIp = vpnRes.wg_ip ?? ''
+  } catch { /* ignore */ }
+}, 15000)
+onUnmounted(() => clearInterval(vpnPollInterval))
+
 watch(showWifiModal, (open) => { if (open) scanWifi() })
 watch(showDnsModal, (open) => { if (open) { dnsSelectedProvider.value = networkData.value.dnsProvider || 'system'; dnsError.value = '' } })