fix(ui): подтверждать создание интерфейса и пира WireGuard

app/(main)/wireguard/page.tsx

@@ -192,7 +192,9 @@ function WireGuardPageContent({ selectedServerId, selectedInterfaceId, allInterf
   const [search, setSearch] = useState("")
   const [createOpen, setCreateOpen] = useState(false)
   const [importOpen, setImportOpen] = useState(false)
-  const importLock = useRef(false)
+  const formLock = useRef(false)
+  const [createError, setCreateError] = useState<string | null>(null)
+  const [peerError, setPeerError] = useState<string | null>(null)
   const [importError, setImportError] = useState<string | null>(null)
   const [exportIface, setExportIface] = useState<WgIfaceWithServer | null>(null)
   const [exportInitialTab, setExportInitialTab] = useState<"rsc" | "conf" | "peer">("rsc")
@@ -400,10 +402,13 @@ function WireGuardPageContent({ selectedServerId, selectedInterfaceId, allInterf
   }, [displayServers, displayIfaces])
 
   async function handleCreate(form: WgCreateFormState) {
+    if (formLock.current) return
     if (!isLive) {
       toast.info("Создание на роутер доступно только в live-режиме")
       return
     }
+    formLock.current = true
+    setCreateError(null)
     setBusy(true)
     try {
       const ep = parseEndpoint(form.peerEndpoint)
@@ -433,8 +438,9 @@ function WireGuardPageContent({ selectedServerId, selectedInterfaceId, allInterf
       setCreateOpen(false)
       await loadLive()
     } catch (e) {
-      toast.error(e instanceof Error ? e.message : "Ошибка создания")
+      setCreateError(e instanceof Error ? e.message : "Ошибка создания")
     } finally {
+      formLock.current = false
       setBusy(false)
     }
   }
@@ -445,12 +451,12 @@ function WireGuardPageContent({ selectedServerId, selectedInterfaceId, allInterf
     format: "auto" | "rsc" | "conf"
     dryRun: boolean
   }) {
-    if (importLock.current) return
+    if (formLock.current) return
     if (!isLive) {
       toast.info("Импорт на роутер доступен только в live-режиме")
       return
     }
-    importLock.current = true
+    formLock.current = true
     setImportError(null)
     setBusy(true)
     try {
@@ -474,7 +480,7 @@ function WireGuardPageContent({ selectedServerId, selectedInterfaceId, allInterf
     } catch (e) {
       setImportError(e instanceof Error ? e.message : "Ошибка импорта")
     } finally {
-      importLock.current = false
+      formLock.current = false
       setBusy(false)
     }
   }
@@ -539,11 +545,14 @@ function WireGuardPageContent({ selectedServerId, selectedInterfaceId, allInterf
   }
 
   async function handleAddPeer(form: WgPeerFormState) {
+    if (formLock.current) return
     if (sourceUnavailable(peerIface?.serverId)) return
     if (!isLive || !peerIface) {
       toast.info("Доступно только в live-режиме")
       return
     }
+    formLock.current = true
+    setPeerError(null)
     setBusy(true)
     try {
       const ep = parseEndpoint(form.endpoint)
@@ -564,8 +573,9 @@ function WireGuardPageContent({ selectedServerId, selectedInterfaceId, allInterf
       setPeerIface(null)
       await loadLive()
     } catch (e) {
-      toast.error(e instanceof Error ? e.message : "Ошибка")
+      setPeerError(e instanceof Error ? e.message : "Ошибка")
     } finally {
+      formLock.current = false
       setBusy(false)
     }
   }
@@ -605,7 +615,7 @@ function WireGuardPageContent({ selectedServerId, selectedInterfaceId, allInterf
   }
 
   const emptyCreateAction = (
-    <Button size="sm" onClick={() => setCreateOpen(true)}>
+    <Button size="sm" onClick={() => { setCreateError(null); setCreateOpen(true) }}>
       <PlusIcon className="size-4" />
       Новый интерфейс
     </Button>
@@ -657,7 +667,7 @@ function WireGuardPageContent({ selectedServerId, selectedInterfaceId, allInterf
                 <UploadIcon className="size-4" />
                 Импорт
               </Button>
-              <Button size="sm" onClick={() => setCreateOpen(true)}>
+              <Button size="sm" onClick={() => { setCreateError(null); setCreateOpen(true) }}>
                 <PlusIcon className="size-4" />
                 Новый интерфейс
               </Button>
@@ -776,7 +786,7 @@ function WireGuardPageContent({ selectedServerId, selectedInterfaceId, allInterf
                     compactServer={compactServer}
                     emptyAction={emptyCreateAction}
                     onExport={(iface) => openExport(iface, "rsc")}
-                    onAddPeer={selectedSourceError ? undefined : setPeerIface}
+                    onAddPeer={selectedSourceError ? undefined : iface => { setPeerError(null); setPeerIface(iface) }}
                     onToggle={selectedSourceError ? undefined : handleToggle}
                     onDelete={selectedSourceError ? undefined : (iface) => setPendingDelete({ kind: "iface", iface })}
                     onDeletePeer={selectedSourceError ? undefined : (iface, peerId) => setPendingDelete({ kind: "peer", iface, peerId })}
@@ -798,7 +808,7 @@ function WireGuardPageContent({ selectedServerId, selectedInterfaceId, allInterf
                     compactServer={compactServer}
                     emptyAction={
                       scopedIfaces.length === 1 ? (
-                        <Button size="sm" disabled={selectedSourceError} onClick={() => setPeerIface(scopedIfaces[0])}>
+                        <Button size="sm" disabled={selectedSourceError} onClick={() => { setPeerError(null); setPeerIface(scopedIfaces[0]) }}>
                           <PlusIcon className="size-4" />
                           Добавить пира
                         </Button>
@@ -872,7 +882,8 @@ function WireGuardPageContent({ selectedServerId, selectedInterfaceId, allInterf
 
       <WgCreateSheet
         open={createOpen}
-        onOpenChange={setCreateOpen}
+        onOpenChange={v => { if (!formLock.current) setCreateOpen(v) }}
+        error={createError}
         servers={serverOptions}
         defaultServerId={sheetServerId}
         busy={busy}
@@ -880,7 +891,7 @@ function WireGuardPageContent({ selectedServerId, selectedInterfaceId, allInterf
       />
       <WgImportSheet
         open={importOpen}
-        onOpenChange={v => { if (!importLock.current) setImportOpen(v) }}
+        onOpenChange={v => { if (!formLock.current) setImportOpen(v) }}
         error={importError}
         servers={serverOptions}
         defaultServerId={sheetServerId}
@@ -891,7 +902,8 @@ function WireGuardPageContent({ selectedServerId, selectedInterfaceId, allInterf
         open={!!peerIface}
         iface={peerIface}
         busy={busy}
-        onOpenChange={(v) => { if (!v) setPeerIface(null) }}
+        onOpenChange={(v) => { if (!v && !formLock.current) setPeerIface(null) }}
+        error={peerError}
         onSubmit={handleAddPeer}
       />
       <WgExportSheet