feat: Add communities management routes and integrate community selection in FilterManager for enhanced user experience

frontend/src/DomainsNewManager.jsx

@@ -41,7 +41,8 @@ function DomainsNewManager() {
     return /^([a-z0-9-]+\.)+[a-z]{2,}$/i.test(v);
   };
 
-  const isValidCommunity = (value) => /^[0-9]+$/.test(String(value).trim());
+  // Допускаем как числовые, так и строковые (AS:NNN) community
+  const isValidCommunity = (value) => /^(\d+|\d+:\d+)$/.test(String(value).trim());
 
   useEffect(() => {
     fetchItems();