fix: resolve frontend dependency conflicts for Vite 8 build

frontend/package.json

@@ -9,7 +9,7 @@
     "preview": "vite preview"
   },
   "dependencies": {
-    "@novnc/novnc": "1.6.0",
+    "@novnc/novnc": "1.5.0",
     "@xterm/addon-fit": "^0.11.0",
     "@xterm/xterm": "^6.0.0",
     "axios": "^1.7.7",
@@ -21,7 +21,7 @@
   "devDependencies": {
     "@types/react": "^18.3.12",
     "@types/react-dom": "^18.3.1",
-    "@vitejs/plugin-react": "^4.3.4",
+    "@vitejs/plugin-react": "^5.2.0",
     "autoprefixer": "^10.4.20",
     "postcss": "^8.4.49",
     "tailwindcss": "^3.4.15",