fix(ui): проверять ревизии и сохранять ошибки истории

app/(main)/recursive-routes/page.tsx

@@ -1,6 +1,6 @@
 "use client"
 
-import { useCallback, useEffect, useMemo, useState } from "react"
+import { useCallback, useEffect, useRef, useMemo, useState } from "react"
 import { PageHeader } from "@/components/page-header"
 import {
   RecursiveRoutesDataGrid,
@@ -23,7 +23,7 @@ import { toast } from "sonner"
 import { requestJson } from "@/shared/api/http-client"
 import { ServerRailLayout, ServerRailMobileButton } from "@/components/server-rail-layout"
 import { ConfigHistorySheet } from "@/components/config-history-sheet"
-import type { ConfigRevisionDto } from "@/lib/config-revisions"
+import { parseConfigRevisions, type ConfigRevisionDto } from "@/lib/config-revisions"
 import { type ServerTileItem } from "@/components/server-tile-rail"
 
 interface BackendServer {
@@ -379,6 +379,8 @@ export default function RecursiveRoutesPage() {
   const [liveStale, setLiveStale] = useState(false)
   const [historyOpen, setHistoryOpen] = useState(false)
   const [historyLoading, setHistoryLoading] = useState(false)
+  const [historyError, setHistoryError] = useState<string | null>(null)
+  const historyEpoch = useRef(0)
   const [historyRestoring, setHistoryRestoring] = useState(false)
   const [revisions, setRevisions] = useState<ConfigRevisionDto[]>([])
   /** В live не дергаем API с id мока (srv1…) пока не подтянули /api/servers */
@@ -472,19 +474,24 @@ export default function RecursiveRoutesPage() {
     }
   }, [isLive, selectedServerId, liveStale, rows, apiFetch])
 
+  useEffect(() => () => { historyEpoch.current += 1 }, [selectedServerId, backendUrl, isLive])
+
   const loadRevisions = useCallback(async () => {
     if (!isLive || !selectedServerId) return
+    const epoch = ++historyEpoch.current
     setHistoryLoading(true)
+    setHistoryError(null)
     try {
-      const res = await apiFetch<{ revisions: ConfigRevisionDto[] }>(
+      const res = await apiFetch<unknown>(
         `/api/recursive-routes/revisions?serverId=${encodeURIComponent(selectedServerId)}`,
       )
-      setRevisions(res.revisions)
-    } catch (e) {
-      toast.error(e instanceof Error ? e.message : "Не удалось загрузить историю")
-      setRevisions([])
+      if (epoch !== historyEpoch.current) return
+      setRevisions(parseConfigRevisions(res, selectedServerId, "recursive-routes"))
+    } catch (error) {
+      if (epoch !== historyEpoch.current) return
+      setHistoryError(error instanceof Error ? error.message : "Не удалось загрузить историю")
     } finally {
-      setHistoryLoading(false)
+      if (epoch === historyEpoch.current) setHistoryLoading(false)
     }
   }, [isLive, selectedServerId, apiFetch])
 
@@ -752,7 +759,9 @@ export default function RecursiveRoutesPage() {
 
       <ConfigHistorySheet
         open={historyOpen}
-        onOpenChange={setHistoryOpen}
+        onOpenChange={v => { if (!v) historyEpoch.current += 1; setHistoryOpen(v) }}
+        loadError={historyError}
+        onRetry={() => { void loadRevisions() }}
         title="История маршрутов"
         itemLabel="маршрутов"
         revisions={revisions}