fix(ui): проверять ревизии и сохранять ошибки истории

app/(main)/firewall/page.tsx

@@ -56,7 +56,7 @@ import { ServerRailLayout, ServerRailMobileButton } from "@/components/server-ra
 import { ALL_SERVERS_ID, type ServerTileItem } from "@/components/server-tile-rail"
 import { toast } from "sonner"
 import { ConfigHistorySheet } from "@/components/config-history-sheet"
-import type { ConfigRevisionDto } from "@/lib/config-revisions"
+import { parseConfigRevisions, type ConfigRevisionDto } from "@/lib/config-revisions"
 
 // ─── Types ────────────────────────────────────────────────────────────────────
 
@@ -1952,6 +1952,8 @@ function FirewallPageInner() {
   const [historyOpen, setHistoryOpen] = useState(false)
   const [revisions, setRevisions] = useState<ConfigRevisionDto[]>([])
   const [historyLoading, setHistoryLoading] = useState(false)
+  const [historyError, setHistoryError] = useState<string | null>(null)
+  const historyEpoch = useRef(0)
   const [historyRestoring, setHistoryRestoring] = useState(false)
 
   const loadLive = useCallback(async () => {
@@ -1978,19 +1980,24 @@ function FirewallPageInner() {
 
   const historyServerId = selectedServerId === ALL_SERVERS_ID ? null : selectedServerId
 
+  useEffect(() => () => { historyEpoch.current += 1 }, [historyServerId, backendUrl, isLive])
+
   const loadRevisions = useCallback(async () => {
     if (!isLive || !historyServerId) return
+    const epoch = ++historyEpoch.current
     setHistoryLoading(true)
+    setHistoryError(null)
     try {
-      const res = await apiFetch<{ revisions: ConfigRevisionDto[] }>(
+      const res = await apiFetch<unknown>(
         `/api/firewall/revisions?serverId=${encodeURIComponent(historyServerId)}`,
       )
-      setRevisions(res.revisions)
-    } catch (err) {
-      toast.error("Не удалось загрузить историю", { description: String(err) })
-      setRevisions([])
+      if (epoch !== historyEpoch.current) return
+      setRevisions(parseConfigRevisions(res, historyServerId, "firewall"))
+    } 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, historyServerId, apiFetch])
 
@@ -2645,7 +2652,9 @@ function FirewallPageInner() {
 
       <ConfigHistorySheet
         open={historyOpen}
-        onOpenChange={setHistoryOpen}
+        onOpenChange={v => { if (!v) historyEpoch.current += 1; setHistoryOpen(v) }}
+        loadError={historyError}
+        onRetry={() => { void loadRevisions() }}
         title="История Firewall"
         itemLabel="объектов"
         revisions={revisions}