fix(ui): изолировать операции восстановления Filters

app/(main)/filters/page.tsx

@@ -1426,12 +1426,14 @@ export default function FiltersPage() {
   }, [isLive, apiFetch])
 
   const loadLiveRules = useCallback(async (serverId: string) => {
-    if (!isLive || !serverId) return
+    if (!isLive || !serverId) return false
     try {
       const fresh = await apiFetch<LiveFiltersResponse>(
         `/api/filters/rules?serverId=${encodeURIComponent(serverId)}`,
       )
-      const liveRules = fresh.rulesets.find((r) => r.serverId === serverId)?.rules ?? fresh.rulesets[0]?.rules ?? []
+      const ruleset = fresh.rulesets.find(r => r.serverId === serverId)
+      if (!ruleset || fresh.stale) throw new Error("Не удалось получить актуальные правила выбранного устройства")
+      const liveRules = ruleset.rules
       setRulesets((prev) => {
         const has = prev.some((rs) => rs.serverId === serverId)
         if (!has) return [...prev, { serverId, rules: liveRules }]
@@ -1441,9 +1443,11 @@ export default function FiltersPage() {
       if (fresh.greTunnels?.length) {
         setGreByServer((prev) => ({ ...prev, [serverId]: fresh.greTunnels }))
       }
+      return true
     } catch (err) {
       setLiveStale(true)
       toast.error("Не удалось прочитать правила с роутера", { description: String(err) })
+      return false
     }
   }, [isLive, apiFetch])
 
@@ -1540,7 +1544,8 @@ export default function FiltersPage() {
   }, [isLive, apiFetch, applyBusy, historyRestoring, liveStale, liveLoadState])
 
   const refreshFromRouter = useCallback(async () => {
-    if (!isLive || !selectedServerId || applyBusy) return
+    if (!isLive || !selectedServerId || applyLock.current || applyBusy || historyRestoring) return
+    applyLock.current = true
     setApplyBusy(true)
     try {
       await loadLiveRules(selectedServerId)
@@ -1549,9 +1554,10 @@ export default function FiltersPage() {
         ensureRecursiveRoutes(selectedServerId),
       ])
     } finally {
+      applyLock.current = false
       setApplyBusy(false)
     }
-  }, [isLive, selectedServerId, applyBusy, loadLiveRules, ensureGreTunnels, ensureRecursiveRoutes])
+  }, [isLive, selectedServerId, applyBusy, historyRestoring, loadLiveRules, ensureGreTunnels, ensureRecursiveRoutes])
 
   useEffect(() => () => { historyEpoch.current += 1 }, [selectedServerId, backendUrl, isLive])
 
@@ -1575,7 +1581,10 @@ export default function FiltersPage() {
   }, [isLive, selectedServerId, apiFetch])
 
   const restoreRevision = useCallback(async (id: string) => {
-    if (!isLive || !selectedServerId) return
+    if (!isLive || !selectedServerId) throw new Error("Выберите устройство в режиме живых данных")
+    if (applyLock.current || applyBusy || historyRestoring) throw new Error("Дождитесь завершения текущей операции")
+    applyLock.current = true
+    setApplyBusy(true)
     setHistoryRestoring(true)
     try {
       const res = await apiFetch<{ ok: boolean; rules?: FilterRule[] }>(
@@ -1586,17 +1595,17 @@ export default function FiltersPage() {
       if (res.rules) {
         setRulesets((p) => p.map((rs) => rs.serverId === selectedServerId ? { ...rs, rules: res.rules ?? [] } : rs))
       } else {
-        await loadLiveRules(selectedServerId)
+        if (!await loadLiveRules(selectedServerId)) throw new Error("Версия применена, но актуальные правила не прочитаны — обновите данные")
       }
       setLiveStale(false)
-      toast.success("Версия применена на роутер")
       await loadRevisions()
-    } catch (err) {
-      throw err
+      toast.success("Версия применена на роутер")
     } finally {
+      applyLock.current = false
+      setApplyBusy(false)
       setHistoryRestoring(false)
     }
-  }, [isLive, selectedServerId, apiFetch, loadLiveRules, loadRevisions])
+  }, [isLive, selectedServerId, apiFetch, applyBusy, historyRestoring, loadLiveRules, loadRevisions])
 
   const updateRules = useCallback((serverId: string, updater: (rules: FilterRule[]) => FilterRule[]) => {
     const current = rulesets.find((rs) => rs.serverId === serverId)?.rules ?? []
@@ -1738,7 +1747,7 @@ export default function FiltersPage() {
                     variant="outline"
                     size="sm"
                     onClick={() => void refreshFromRouter()}
-                    disabled={applyBusy}
+                    disabled={applyBusy || historyRestoring}
                     title="Прочитать актуальные правила с роутера"
                   >
                     <RefreshCwIcon className={cn("size-4", applyBusy && "animate-spin")} />
@@ -1748,10 +1757,11 @@ export default function FiltersPage() {
                     variant="outline"
                     size="sm"
                     onClick={() => {
+                      if (applyLock.current) return
                       setHistoryOpen(true)
                       void loadRevisions()
                     }}
-                    disabled={applyBusy}
+                    disabled={applyBusy || historyRestoring}
                     title="История версий и откат на CHR"
                   >
                     <HistoryIcon className="size-4" />
@@ -2000,7 +2010,7 @@ export default function FiltersPage() {
         open={historyOpen}
         onOpenChange={v => { if (!v) historyEpoch.current += 1; setHistoryOpen(v) }}
         loadError={historyError}
-        onRetry={() => { void loadRevisions() }}
+        onRetry={() => { if (!applyLock.current) void loadRevisions() }}
         title="История фильтров"
         itemLabel="правил"
         revisions={revisions}