feat: Implement gateway normalization and inventory server loading in FilterManager, enhancing gateway management and improving server configuration reliability.

frontend/src/FilterManager.jsx

@@ -35,6 +35,33 @@ import {
 
 const API_URL = '/api';
 
+// Нормализация шлюзов (аналог из ServerManager)
+const normalizeGateways = (gateways = [], fallbackName = '') => {
+  if (!Array.isArray(gateways)) return [];
+  const cleaned = gateways
+    .map((g, idx) => ({
+      id: g?.id || `${Date.now()}-${idx}`,
+      name: String(g?.name || '').trim(),
+      ip: String(g?.ip || '').trim(),
+      comment: String(g?.comment || '').trim(),
+      primary: Boolean(g?.primary),
+    }))
+    .filter(g => g.name || g.ip || g.comment);
+  if (cleaned.length === 0) {
+    return [{ id: `${Date.now()}-primary`, name: fallbackName || 'gateway', ip: '', comment: '', primary: true }];
+  }
+  let hasPrimary = false;
+  cleaned.forEach((g) => {
+    if (g.primary && !hasPrimary) {
+      hasPrimary = true;
+    } else {
+      g.primary = false;
+    }
+  });
+  if (!hasPrimary) cleaned[0].primary = true;
+  return cleaned;
+};
+
 const countryToFlag = (code) => {
   if (!code || typeof code !== 'string') return '';
   const cc = code.trim().toUpperCase();
@@ -121,6 +148,9 @@ function FilterManager() {
 
   // Communities directory for autocomplete
   const [communities, setCommunities] = useState([]);
+  // Inventory servers (from /servers endpoint)
+  const [inventoryServers, setInventoryServers] = useState([]);
+  
   useEffect(() => {
     (async () => {
       try {
@@ -130,6 +160,15 @@ function FilterManager() {
         // мягко игнорируем, автокомплит необязателен
       }
     })();
+    // Загружаем инвентарь серверов для отображения флагов и IP
+    (async () => {
+      try {
+        const res = await api.get(`/servers`);
+        setInventoryServers(Array.isArray(res.data) ? res.data : []);
+      } catch (e) {
+        // мягко игнорируем, дополнительная информация необязательна
+      }
+    })();
   }, []);
 
   const filterKey = (f) => {