fix(traffic): отличать измеренный ноль от отсутствия наблюдений

components/reui-kit/traffic-rx-tx-chart.tsx

@@ -53,15 +53,15 @@ function CustomTooltip({
   )
 }
 
-function toChartData(rx: number[], tx: number[], rangeMinutes: number) {
+function toChartData(rx: (number|null)[], tx: (number|null)[], rangeMinutes: number) {
   const n = Math.max(rx.length, tx.length, 1)
   const denom = Math.max(n - 1, 1)
   return Array.from({ length: n }, (_, i) => {
     const minutesAgo = Math.round((1 - i / denom) * rangeMinutes)
     return {
       time: formatRangeAgo(minutesAgo),
-      rx: Number.isFinite(rx[i]) && rx[i] >= 0 ? rx[i] : null,
-      tx: Number.isFinite(tx[i]) && tx[i] >= 0 ? tx[i] : null,
+      rx: typeof rx[i] === "number" && Number.isFinite(rx[i]) && rx[i] >= 0 ? rx[i] : null,
+      tx: typeof tx[i] === "number" && Number.isFinite(tx[i]) && tx[i] >= 0 ? tx[i] : null,
     }
   })
 }
@@ -72,8 +72,8 @@ export function TrafficRxTxChart({
   range = "1h",
   embedded = false,
 }: {
-  rx: number[]
-  tx: number[]
+  rx: (number|null)[]
+  tx: (number|null)[]
   range?: string
   /** Skip outer Frame when already inside OpsPanel / Frame. */
   embedded?: boolean