fix(ui): учитывать права и состояние устройства при откате истории

app/(main)/gre/page.tsx

@@ -1,5 +1,7 @@
 "use client"
 
+import { can } from "@/lib/auth"
+
 import { Suspense, useCallback, useEffect, useRef, useMemo, useState } from "react"
 import Link from "next/link"
 import { useRouter, useSearchParams } from "next/navigation"
@@ -294,6 +296,7 @@ function GrePageContent({ selectedServerId, selectedTunnelId, allTunnelsHref, on
   }, [isLive, historyServerId, apiFetch])
 
   const restoreRevision = async (id: string) => {
+    if (!can("mm:network:write")) throw new Error("Нет прав на изменение конфигурации")
     if (!historyServerId || !beginOperation(historyServerId)) throw new Error("Устройство не готово к восстановлению GRE")
     setHistoryRestoring(true)
     try {
@@ -934,6 +937,7 @@ function GrePageContent({ selectedServerId, selectedTunnelId, allTunnelsHref, on
         revisions={revisions}
         loading={historyLoading}
         restoring={historyRestoring}
+        restoreDisabled={!can("mm:network:write") || !historyServerId || !canManage(historyServerId)}
         onRestore={restoreRevision}
       />