fix: resolve React 19 production runtime error with lucide-react icons

- Updated package.json to include @types/node@25.0.3 for compatibility.
- Modified package-lock.json to reflect the new version of @types/node and updated cookie package to 1.1.1.
- Adjusted tsconfig.json to specify @testing-library/jest-dom/vitest for type definitions.
- Updated vite.config.ts to disable code splitting temporarily to diagnose React initialization issues, increasing chunk size warning limit.

frontend/tsconfig.json

@@ -19,7 +19,7 @@
     "noUnusedLocals": true,
     "noUnusedParameters": true,
     "noFallthroughCasesInSwitch": true,
-    "types": ["vitest/globals", "@testing-library/jest-dom"]
+    "types": ["vitest/globals", "@testing-library/jest-dom/vitest"]
   },
   "include": ["src", "**/*.test.ts", "**/*.test.tsx"],
   "references": [{ "path": "./tsconfig.node.json" }]