fix(ui): подтверждать удаление правил Filters

app/(main)/filters/page.tsx

@@ -32,6 +32,7 @@ import {
 import {
   Sheet, SheetContent, SheetHeader, SheetTitle, SheetDescription, SheetFooter,
 } from "@/components/ui/sheet"
+import { AlertDialog, AlertDialogContent, AlertDialogHeader, AlertDialogTitle, AlertDialogDescription, AlertDialogFooter, AlertDialogCancel, AlertDialogAction } from "@/components/ui/alert-dialog"
 import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs"
 import { Tooltip, TooltipContent, TooltipTrigger } from "@/components/ui/tooltip"
 import { toast } from "sonner"
@@ -1356,6 +1357,10 @@ export default function FiltersPage() {
   const [copyOpen,     setCopyOpen]     = useState(false)
   const [applyBusy,    setApplyBusy]    = useState(false)
   const applyLock = useRef(false)
+  const [pendingDelete, setPendingDelete] = useState<{ serverId: string; serverName: string; rule: FilterRule } | null>(null)
+  const [deletePending, setDeletePending] = useState(false)
+  const [deleteError, setDeleteError] = useState<string | null>(null)
+  const deleteLock = useRef(false)
   const [liveStale,    setLiveStale]    = useState(false)
   const [historyOpen,  setHistoryOpen]  = useState(false)
   const [historyLoading, setHistoryLoading] = useState(false)
@@ -1472,6 +1477,8 @@ export default function FiltersPage() {
   const handleSelectServer = useCallback((id: string) => {
     if (applyLock.current) return
     setSheetOpen(false)
+    setPendingDelete(null)
+    setDeleteError(null)
     setSelectedServerId(id)
     setSearch("")
   }, [])
@@ -1632,8 +1639,36 @@ export default function FiltersPage() {
   }
 
   const handleDelete = (id: string) => {
-    if (mutationsLocked) return
-    updateRules(selectedServerId, rules => rules.filter(r => r.id !== id))
+    if (mutationsLocked || applyLock.current) return
+    const rule = currentRules.find(r => r.id === id)
+    if (!rule || !selectedServer) return
+    setDeleteError(null)
+    setPendingDelete({ serverId: selectedServerId, serverName: selectedServer.name, rule })
+  }
+  const confirmDelete = async () => {
+    if (!pendingDelete || deleteLock.current) return
+    if (mutationsLocked || applyLock.current) {
+      setDeleteError("Дождитесь завершения операции или обновите данные")
+      return
+    }
+    const current = rulesets.find(rs => rs.serverId === pendingDelete.serverId)?.rules
+    if (!current?.some(r => r.id === pendingDelete.rule.id)) {
+      setDeleteError("Правило отсутствует в текущем списке — обновите данные")
+      return
+    }
+    deleteLock.current = true
+    setDeletePending(true)
+    setDeleteError(null)
+    try {
+      const result = await applyRules(pendingDelete.serverId, current.filter(r => r.id !== pendingDelete.rule.id))
+      if (!result.ok) setDeleteError(result.error ?? "Не удалось удалить правило")
+      else setPendingDelete(null)
+    } catch (error) {
+      setDeleteError(error instanceof Error ? error.message : "Не удалось удалить правило")
+    } finally {
+      deleteLock.current = false
+      setDeletePending(false)
+    }
   }
 
   const handleCopyRules = useCallback(async (targetServerId: string, rules: FilterRule[], mode: CopyMode) => {
@@ -1884,6 +1919,26 @@ export default function FiltersPage() {
         </div>
     </ServerRailLayout>
 
+      <AlertDialog open={!!pendingDelete} onOpenChange={open => {
+        if (!open && !deleteLock.current) { setPendingDelete(null); setDeleteError(null) }
+      }}>
+        <AlertDialogContent>
+          <AlertDialogHeader>
+            <AlertDialogTitle>Удалить правило Filters?</AlertDialogTitle>
+            <AlertDialogDescription>
+              Community {pendingDelete?.rule.community} · {pendingDelete?.serverName}.
+              Правило будет удалено из набора фильтров устройства.
+            </AlertDialogDescription>
+            {deletePending && <p role="status" className="text-sm text-muted-foreground">Ожидание подтверждения удаления…</p>}
+            {deleteError && <p role="alert" className="text-sm text-destructive">{deleteError}</p>}
+          </AlertDialogHeader>
+          <AlertDialogFooter>
+            <AlertDialogCancel disabled={deletePending}>Отмена</AlertDialogCancel>
+            <AlertDialogAction variant="destructive" disabled={deletePending || mutationsLocked} onClick={e => { e.preventDefault(); void confirmDelete() }}>Удалить</AlertDialogAction>
+          </AlertDialogFooter>
+        </AlertDialogContent>
+      </AlertDialog>
+
       <RuleSheet
         key={`${sheetOpen}-${sheetMode}-${editingId ?? "new"}-${selectedServerId}`}
         open={sheetOpen}