fix(ui): отклонять повреждённые данные live-потока

hooks/use-flow-live.ts

@@ -1,7 +1,7 @@
 "use client"
 
 import { useEffect, useState } from "react"
-import type { FlowAnalyticsDto } from "@mmapp/contracts/traffic-flow"
+import { flowAnalyticsDtoSchema, type FlowAnalyticsDto } from "@mmapp/contracts/traffic-flow"
 import { resolveApiUrl, withAuthHeaders } from "@/shared/api/http-client"
 import { flowQuery } from "@/shared/api/traffic-flow"
 
@@ -16,9 +16,8 @@ function parseSseBlock(block: string): { event: string; data: string } {
 }
 
 export function isValidFlowLiveSample(value: unknown): value is FlowAnalyticsDto {
-  if (!value || typeof value !== "object") return false
-  const v = value as Partial<FlowAnalyticsDto>
-  return typeof v.uniqueSrc === "number" && Array.isArray(v.destinations)
+  const parsed = flowAnalyticsDtoSchema.safeParse(value)
+  return parsed.success && [...parsed.data.rxSeries, ...parsed.data.txSeries].every(value => Number.isFinite(value) && value >= 0)
 }
 
 export function useFlowLive(opts: {
@@ -81,19 +80,19 @@ export function useFlowLive(opts: {
             if (ev.event === "sample" && ev.data) {
               const parsed = JSON.parse(ev.data) as unknown
               if (!isValidFlowLiveSample(parsed)) {
-                setError("live sample пустой")
-                continue
+                throw new Error("Некорректные данные live-потока")
               }
               setResult({ key, sample: parsed, error: parsed.degraded ? "Коллектор перегружен: упрощённая аналитика" : null })
             } else if (ev.event === "error" && ev.data) {
-              const parsed = JSON.parse(ev.data) as { error?: string }
-              setError(parsed.error ?? "live error")
+              const parsed: unknown = JSON.parse(ev.data)
+              throw new Error(parsed && typeof parsed === "object" && "error" in parsed && typeof parsed.error === "string" ? parsed.error : "Ошибка live-потока")
             }
           }
         }
       } catch (e) {
         if (ac.signal.aborted) return
-        setError(e instanceof Error ? e.message : "live error")
+        setError(e instanceof Error ? e.message : "Ошибка live-потока")
+        ac.abort()
       }
     })()