feat(NetworkMapDashboard): update ping requests to include gateway IP for accurate tunnel interface identification

frontend/src/NetworkMapDashboard.jsx

@@ -110,7 +110,10 @@ export default function NetworkMapDashboard() {
           try {
             const { data } = await api.post('/mikrotik/ping', {
               serverId: c.fromKey,
+              // ВАЖНО: передаём внутренний IP и как target, и как gatewayIp,
+              // чтобы backend мог по gatewayIp найти нужный tunnel interface.
               target: c.internalFromTo,
+              gatewayIp: c.internalFromTo,
               count: 3,
             });
             const ms = typeof data?.avgMs === 'number' ? Math.round(data.avgMs) : null;
@@ -127,7 +130,9 @@ export default function NetworkMapDashboard() {
           try {
             const { data } = await api.post('/mikrotik/ping', {
               serverId: c.toKey,
+              // Аналогично для обратного направления
               target: c.internalToFrom,
+              gatewayIp: c.internalToFrom,
               count: 3,
             });
             const ms = typeof data?.avgMs === 'number' ? Math.round(data.avgMs) : null;