refactor: complete application rewrite with modern UI

package.json

@@ -13,6 +13,7 @@
   },
   "dependencies": {
     "bootstrap": "^5.3.3",
+    "lucide-react": "^0.575.0",
     "react": "^19.2.0",
     "react-dom": "^19.2.0",
     "react-highlight": "^0.15.0"
@@ -24,11 +25,14 @@
     "@types/react-dom": "^18.3.5",
     "@types/react-highlight": "^0.12.8",
     "@vitejs/plugin-react": "^4.3.4",
+    "autoprefixer": "^10.4.24",
     "eslint": "^9.17.0",
     "eslint-plugin-react-hooks": "^5.0.0",
     "eslint-plugin-react-refresh": "^0.4.16",
     "globals": "^16.5.0",
     "jsdom": "^27.4.0",
+    "postcss": "^8.5.6",
+    "tailwindcss": "^3.4.19",
     "typescript": "~5.9.3",
     "typescript-eslint": "^8.46.4",
     "vite": "^7.2.4",