feat(server): expand server types to include BGP and DNS; enhance validation for required fields and tunnel requirements in server configuration

backend/server.js

@@ -301,10 +301,14 @@ app.post('/api/ip-ranges', writeLimiter, ipRangesRoutes.post);
 // === JSON DATA ROUTES (используют фабрики) ===
 
 // Servers
-const SERVER_TYPES = ['jumphost', 'exit'];
+const SERVER_TYPES = ['jumphost', 'exit', 'bgp', 'dns'];
+const TYPES_NEED_TUNNEL = ['jumphost', 'exit']; // Типы, которым нужен туннель
+const TYPES_NEED_GATEWAYS = ['jumphost', 'exit']; // Типы, которым нужны gateways
+
 const serversRoutes = createJsonDataRoutes('servers.json', (server, i) => {
-  if (!server.ip || !server.dns || !server.country || !server.provider || !server.tunnel) {
-    return `Server at index ${i} is missing required fields`;
+  // Базовые обязательные поля
+  if (!server.ip || !server.dns || !server.country || !server.provider) {
+    return `Server at index ${i} is missing required fields (ip, dns, country, provider)`;
   }
 
   const normalizedType = String(server.type || '').toLowerCase();
@@ -312,7 +316,13 @@ const serversRoutes = createJsonDataRoutes('servers.json', (server, i) => {
     return `Server at index ${i} has invalid type (allowed: ${SERVER_TYPES.join(', ')})`;
   }
 
-  if (normalizedType === 'jumphost' || normalizedType === 'exit') {
+  // Туннель обязателен только для jumphost и exit
+  if (TYPES_NEED_TUNNEL.includes(normalizedType) && !server.tunnel) {
+    return `Server at index ${i} (${normalizedType}) requires tunnel type`;
+  }
+
+  // Gateways обязательны только для jumphost и exit
+  if (TYPES_NEED_GATEWAYS.includes(normalizedType)) {
     if (!Array.isArray(server.gateways) || server.gateways.length === 0) {
       return `Server at index ${i} must have gateways for type ${normalizedType}`;
     }