fix(dnsserver): Enable multiple DNS record support by removing the premature break in processDnsRequest. Now the DNS server aggregates answers from all matching handlers for NS, A, and TXT records, and improves NS record serialization for DNSSEC.

ts_server/classes.dnsserver.ts

@@ -606,7 +606,7 @@ export class DnsServer {
             }
 
             answered = true;
-            break;
+            // Continue processing other handlers to allow multiple records
           }
         }
       }
@@ -756,6 +756,9 @@ export class DnsServer {
           Buffer.from([dnskeyData.algorithm]),
           dnskeyData.key,
         ]);
+      case 'NS':
+        // NS records contain domain names
+        return this.nameToBuffer(data);
       case 'SOA':
         // Implement SOA record serialization if needed
         // For now, return an empty buffer or handle as needed