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 <[email protected]>

shared/api/statistics.ts

@@ -0,0 +1,20 @@
+import type { StatisticsDto, StatisticsQuery } from "@mmapp/contracts/statistics"
+import { requestJson } from "@/shared/api/http-client"
+
+export type { StatisticsDto, StatisticsQuery }
+
+export async function getStatistics(
+  baseUrl: string,
+  query: StatisticsQuery,
+): Promise<StatisticsDto> {
+  const params = new URLSearchParams()
+  params.set("from", query.from)
+  params.set("to", query.to)
+  if (query.serverId != null) params.set("serverId", String(query.serverId))
+  if (query.userId) params.set("userId", query.userId)
+  if (query.iface) params.set("iface", query.iface)
+  if (query.country) params.set("country", query.country)
+  if (query.service) params.set("service", query.service)
+  if (query.asn != null) params.set("asn", String(query.asn))
+  return requestJson<StatisticsDto>(baseUrl, `/api/statistics?${params.toString()}`)
+}