Revert: Restore Vite 7.2.4 after Node.js upgrade to 20.19+

frontend/package.json

@@ -24,12 +24,12 @@
     "vuex": "^4.1.0"
   },
   "devDependencies": {
-    "@vitejs/plugin-vue": "^5.2.1",
+    "@vitejs/plugin-vue": "^6.0.2",
     "eslint": "^9.39.1",
     "eslint-plugin-vue": "^9.0.0",
     "sass": "^1.77.8",
     "sass-loader": "^14.2.1",
-    "vite": "^6.0.0"
+    "vite": "^7.2.4"
   },
   "eslintConfig": {
     "root": true,