fix(ui): отличать неизвестный RTT от отсутствия ответов Ping

components/data-grids/uptime-speed-history-data-grid.tsx

@@ -191,7 +191,8 @@ function UptimeSpeedHistoryDataGrid({ runs, servers }: UptimeSpeedHistoryDataGri
         cell: ({ row }) => {
           const run = row.original
           if (run.status !== "done") return <span className="text-xs">—</span>
-          if (run.afterBtPing?.error) {
+          if (!run.afterBtPing) return <span className="text-xs text-muted-foreground">Нет данных</span>
+          if (run.afterBtPing.error) {
             return (
               <span className="text-[var(--status-offline-fg)] text-xs font-mono" title={run.afterBtPing.error}>
                 ошибка
@@ -210,7 +211,7 @@ function UptimeSpeedHistoryDataGrid({ runs, servers }: UptimeSpeedHistoryDataGri
           }
           return (
             <span className="font-mono tabular-nums whitespace-nowrap text-xs text-amber-600 dark:text-amber-400">
-              timeout
+              {run.afterBtPing.lossPct === 100 ? "Нет ответов" : "RTT неизвестен"}
               {run.afterBtPing?.lossPct != null && <span> · {run.afterBtPing.lossPct}%</span>}
             </span>
           )