fix(network-map): убрать тяжёлую классификацию из poll карты

Не сканировать RIPE и каталог по каждой строке окна; сервисы по уникальным dst и кэшу ASN. Порог доли на карте настраиваемый и отключаемый.

Co-authored-by: Cursor <[email protected]>

app/(main)/network-map/page.tsx

@@ -938,6 +938,7 @@ export default function NetworkMapPage() {
   const [mapHops, setMapHops] = useState<FlowMapHop[]>([])
   const [mapServices, setMapServices] = useState<FlowMapService[]>([])
   const [mapServiceEdges, setMapServiceEdges] = useState<FlowMapServiceEdge[]>([])
+  const [mapSharePct, setMapSharePct] = useState(5)
   /** FQDN из GRE outer → IPv4 (ответ POST /api/network/resolve-hosts), для матчинга с WAN. */
   const [greResolvedIpv4ByHost, setGreResolvedIpv4ByHost] = useState<Record<string, string>>({})
   const [dataError, setDataError] = useState<string | null>(null)
@@ -1032,6 +1033,7 @@ export default function NetworkMapPage() {
         setMapHops([])
         setMapServices(MOCK_MAP_SERVICES)
         setMapServiceEdges(MOCK_MAP_SERVICE_EDGES)
+        setMapSharePct(5)
         setDataError(null)
       })
       return
@@ -1106,6 +1108,7 @@ export default function NetworkMapPage() {
         setMapHops([])
         setMapServices(MOCK_MAP_SERVICES)
         setMapServiceEdges(MOCK_MAP_SERVICE_EDGES)
+        setMapSharePct(5)
       })
       return
     }
@@ -1118,25 +1121,29 @@ export default function NetworkMapPage() {
       return
     }
     let cancelled = false
+    let ac: AbortController | null = null
     const tick = () => {
-      apiFetch<FlowMapHopsDto>("/api/traffic/flow/map-hops?range=5m")
+      ac?.abort()
+      ac = new AbortController()
+      apiFetch<FlowMapHopsDto>("/api/traffic/flow/map-hops?range=5m", { signal: ac.signal })
         .then((res) => {
           if (cancelled) return
           setMapHops(res.hops ?? [])
           setMapServices(res.services ?? [])
           setMapServiceEdges(res.serviceEdges ?? [])
+          if (res.mapServiceMinSharePct != null) setMapSharePct(res.mapServiceMinSharePct)
         })
-        .catch(() => {
+        .catch((err: unknown) => {
           if (cancelled) return
-          setMapHops([])
-          setMapServices([])
-          setMapServiceEdges([])
+          const name = err instanceof Error ? err.name : ""
+          if (name === "AbortError") return
         })
     }
     tick()
     const id = window.setInterval(tick, 4000)
     return () => {
       cancelled = true
+      ac?.abort()
       window.clearInterval(id)
     }
   }, [useLiveData, showNetflow, showServices, apiFetch])
@@ -1736,6 +1743,11 @@ export default function NetworkMapPage() {
                   </span>
                 </button>
               ))}
+              <p className="px-3 pt-1.5 pb-1 text-[10px] text-muted-foreground leading-snug">
+                {mapSharePct > 0
+                  ? `Порог доли сервиса ≥ ${mapSharePct}% · Настройки → NetFlow`
+                  : "Порог доли выключен (все бренды, макс. 20) · Настройки → NetFlow"}
+              </p>
               {(Object.keys(nodePositions).length > 0 || Object.keys(satPositions).length > 0) && (
                 <div className="border-t border-border/50 mt-1 pt-1">
                   <button