fix(ui): уточнить подписи ICMPv6 и портов IPv6

components/data-grids/traffic-flows-data-grid.tsx

@@ -25,7 +25,7 @@ function formatBytes(n: number): string {
 function formatEndpoint(ip: string | undefined, port: number | undefined): string {
   const host = String(ip ?? "").trim()
   if (!host) return "—"
-  return port ? `${host}:${port}` : host
+  return port ? `${host.includes(":") ? `[${host}]` : host}:${port}` : host
 }
 
 function packetTuple(row: FlowTalkerDto): string {