fix: xlsx static import + type cast for TS build

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/pages/TTLockPage.tsx

@@ -1,4 +1,5 @@
 import { useState, useEffect, useCallback, useRef } from 'react'
+import * as XLSX from 'xlsx'
 import {
   KeyRound, Save, RefreshCw, Check, X, AlertCircle,
   ChevronDown, ChevronRight, Trash2, Plus, Eye, EyeOff,
@@ -174,21 +175,17 @@ export function TTLockPage() {
 
   const handleImportFile = async (file: File) => {
     try {
-      const { read, utils } = await import('xlsx')
       const buf  = await file.arrayBuffer()
-      const wb   = read(buf, { type: 'array' })
+      const wb   = XLSX.read(buf, { type: 'array' })
       const ws   = wb.Sheets[wb.SheetNames[0]]
-      // header: true — первая строка как ключи
-      const rows = utils.sheet_to_json<Record<string, string>>(ws, { defval: '' })
+      const rows = XLSX.utils.sheet_to_json(ws, { defval: '' }) as Array<Record<string, unknown>>
 
       const parsed: ImportRow[] = rows.map(row => {
         const doorName = String(row['Door Name'] ?? '').trim()
         const rawMac   = String(row['Lock Mac']  ?? '').trim()
         const mac      = rawMac.replace(/:/g, '').toUpperCase()
 
-        // Ищем комнату по номеру
-        const matched = rooms.find(r => String(r.number).trim() === doorName)
-        // Уже привязана?
+        const matched      = rooms.find(r => String(r.number).trim() === doorName)
         const alreadyMapped = matched ? mappings.some(m => m.roomId === matched.id) : false
 
         return {