统一 Node 22 与后端安全运行基线（07-15-production-trust-closeout-cleanup）

client/package.json

@@ -3,6 +3,9 @@
   "private": true,
   "version": "0.1.0",
   "type": "module",
+  "engines": {
+    "node": ">=22 <23"
+  },
   "scripts": {
     "dev": "vite",
     "build": "npm run typecheck && vite build",
@@ -35,7 +38,7 @@
     "qrcode.react": "^4.2.0",
     "react": "^18.2.0",
     "react-dom": "^18.2.0",
-    "react-router-dom": "^6.22.0",
+    "react-router-dom": "^6.30.4",
     "sonner": "^2.0.7",
     "tailwind-merge": "^2.6.1"
   },