Migrate to Vite 7, improve UI (Copy/Download), and enhance API security

package.json

@@ -1,19 +1,18 @@
 {
   "name": "jmespath-playground",
-  "version": "1.2.5",
+  "version": "1.3.0",
   "description": "A React-based web application for testing JMESPath expressions against JSON data",
   "main": "index.js",
   "scripts": {
-    "start": "react-scripts start",
+    "start": "vite",
     "prebuild": "node scripts/version-check.js",
-    "build": "react-scripts build",
-    "test": "react-scripts test --watchAll=false",
-    "test:watch": "react-scripts test",
+    "build": "vite build",
+    "preview": "vite preview",
+    "test": "vitest",
     "server": "node server.js",
     "dev": "concurrently \"npm start\" \"npm run server\"",
     "build-image": "node scripts/build-image.js"
   },
-  "proxy": "http://localhost:3000",
   "engines": {
     "node": ">=24.0.0"
   },
@@ -26,21 +25,8 @@
     "jmespath": "^0.16.0",
     "react": "^18.2.0",
     "react-dom": "^18.2.0",
-    "react-scripts": "^5.0.1",
     "uuid": "^9.0.0"
   },
-  "eslintConfig": {
-    "extends": [
-      "react-app",
-      "react-app/jest"
-    ]
-  },
-  "jest": {
-    "collectCoverageFrom": [
-      "src/**/*.{js,jsx,ts,tsx}",
-      "!src/index.js"
-    ]
-  },
   "browserslist": {
     "production": [
       ">0.2%",
@@ -63,7 +49,12 @@
   "author": "",
   "license": "MIT",
   "devDependencies": {
+    "@vitejs/plugin-react": "^5.1.2",
+    "@vitest/ui": "^4.0.18",
     "concurrently": "^8.2.2",
-    "supertest": "^7.2.2"
+    "jsdom": "^27.4.0",
+    "supertest": "^7.2.2",
+    "vite": "^7.3.1",
+    "vitest": "^4.0.18"
   }
 }