convert AuthKit example to use new SDK

Author: nicknisi

examples/react/start-workos/package.json

@@ -18,6 +18,7 @@
     "@tanstack/react-router-devtools": "^1.132.47",
     "@tanstack/react-start": "^1.132.47",
     "@workos-inc/node": "^7.45.0",
+    "@workos/authkit-tanstack-react-start": "^0.1.0",
     "iron-session": "^8.0.4",
     "jose": "^6.0.10",
     "react": "^19.0.0",
@@ -27,8 +28,8 @@
     "@types/react": "^19.0.8",
     "@types/react-dom": "^19.0.3",
     "@vitejs/plugin-react": "^4.3.4",
-    "postcss": "^8.5.1",
     "autoprefixer": "^10.4.20",
+    "postcss": "^8.5.1",
     "tailwindcss": "^3.4.17",
     "typescript": "^5.7.2",
     "vite": "^7.1.7",