feat(statistics): добавить раздел статистики трафика

Куб IPFIX час+день с AND-слайсами и экраном отчётности /statistics, живой /traffic не меняем.

Co-authored-by: Cursor <cursoragent@cursor.com>

components/statistics/statistics-volume-chart.tsx

@@ -0,0 +1,105 @@
+"use client"
+
+import { Area, AreaChart, CartesianGrid, XAxis, YAxis } from "recharts"
+import { Frame, FramePanel } from "@/components/reui/frame"
+import { ChartContainer, ChartTooltip, type ChartConfig } from "@/components/ui/chart"
+import { formatBytes } from "@/lib/fmt-rate"
+import type { StatisticsSeriesPoint } from "@mmapp/contracts/statistics"
+
+/**
+ * Объём трафика за период — adapt ReUI chart-23 (байты, не live bps).
+ * @see https://reui.io/preview/base/chart-23
+ */
+
+const chartConfig = {
+  bytes: { label: "Объём", color: "var(--chart-1)" },
+} satisfies ChartConfig
+
+function formatTick(iso: string, grain: "hour" | "day"): string {
+  const d = new Date(iso)
+  if (Number.isNaN(d.getTime())) return iso.slice(0, 10)
+  if (grain === "hour") {
+    return `${String(d.getHours()).padStart(2, "0")}:00`
+  }
+  return d.toLocaleDateString("ru-RU", { day: "2-digit", month: "short" })
+}
+
+function CustomTooltip({
+  active,
+  payload,
+}: {
+  active?: boolean
+  payload?: { payload: { label: string; bytes: number } }[]
+}) {
+  if (!active || !payload?.length) return null
+  const row = payload[0]?.payload
+  if (!row) return null
+  return (
+    <div className="flex min-w-[120px] flex-col gap-1.5 rounded-lg bg-popover p-3 text-popover-foreground shadow-lg ring-1 ring-foreground/10">
+      <div className="text-[10px] font-medium tracking-wider uppercase opacity-70">{row.label}</div>
+      <div className="text-sm font-semibold tabular-nums">{formatBytes(row.bytes)}</div>
+    </div>
+  )
+}
+
+export function StatisticsVolumeChart({
+  series,
+  grain,
+}: {
+  series: StatisticsSeriesPoint[]
+  grain: "hour" | "day"
+}) {
+  const data = series.map((p) => ({
+    t: p.t,
+    bytes: p.bytes,
+    label: formatTick(p.t, grain),
+  }))
+  const tickEvery = Math.max(1, Math.ceil(data.length / 8))
+
+  return (
+    <Frame className="w-full">
+      <FramePanel className="flex flex-col gap-4">
+        <div className="flex items-baseline justify-between gap-2">
+          <h2 className="text-sm font-medium">Объём по времени</h2>
+          <span className="text-muted-foreground text-xs">
+            {grain === "hour" ? "по часам" : "по суткам"}
+          </span>
+        </div>
+        {data.length === 0 ? (
+          <p className="text-muted-foreground py-10 text-center text-sm">Нет данных за выбранный период</p>
+        ) : (
+          <ChartContainer config={chartConfig} className="-ms-4 aspect-auto h-[220px] w-full">
+            <AreaChart data={data} margin={{ top: 5, right: 5, left: 5, bottom: 5 }}>
+              <CartesianGrid strokeDasharray="4 8" vertical={false} stroke="var(--border)" />
+              <XAxis
+                dataKey="label"
+                axisLine={false}
+                tickLine={false}
+                tick={{ fontSize: 11 }}
+                tickMargin={10}
+                interval={tickEvery - 1}
+              />
+              <YAxis
+                axisLine={false}
+                tickLine={false}
+                tick={{ fontSize: 11 }}
+                tickFormatter={(v: number) => formatBytes(Number(v))}
+                tickMargin={8}
+                width={72}
+              />
+              <ChartTooltip content={<CustomTooltip />} />
+              <Area
+                dataKey="bytes"
+                type="monotone"
+                stroke="var(--chart-1)"
+                fill="var(--chart-1)"
+                fillOpacity={0.15}
+                strokeWidth={2}
+              />
+            </AreaChart>
+          </ChartContainer>
+        )}
+      </FramePanel>
+    </Frame>
+  )
+}