refactor(MikrotikTools): streamline interface filtering logic by moving it to a new useMemo hook for improved performance and readability

frontend/src/MikrotikTools.jsx

@@ -121,18 +121,6 @@ function MikrotikTools() {
     [networkConfig]
   );
 
-  const interfacesForServer = useMemo(() => {
-    if (!serverId || !interfaces.length) return [];
-    const ids = new Set(
-      [serverId, currentServer?.id, currentServer?.ip, currentServer?.dns]
-        .filter(Boolean)
-        .map(String)
-    );
-    return interfaces.filter(
-      (i) => i && i.name && (ids.has(String(i.serverId)) || ids.has(String(i.serverId2)))
-    );
-  }, [interfaces, serverId, currentServer]);
-
   const formatMbps = (bps) => {
     if (bps == null || Number.isNaN(bps)) return '—';
     const mbps = bps / 1_000_000;
@@ -300,6 +288,21 @@ function MikrotikTools() {
     [jumphostServers, serverId]
   );
 
+  const interfacesForServer = useMemo(() => {
+    if (!serverId || !interfaces.length) return [];
+    const ids = new Set(
+      [serverId, currentServer?.id, currentServer?.ip, currentServer?.dns]
+        .filter(Boolean)
+        .map(String)
+    );
+    return interfaces.filter(
+      (i) =>
+        i &&
+        i.name &&
+        (ids.has(String(i.serverId)) || ids.has(String(i.serverId2)))
+    );
+  }, [interfaces, serverId, currentServer]);
+
   const gatewaysForServer = useMemo(() => {
     if (!serverId || !gateways.length) return [];
     const ids = currentServer