chore: upgrade next and react

Author: tstirrat15

next-env.d.ts

@@ -1,6 +1,6 @@
 /// <reference types="next" />
 /// <reference types="next/image-types/global" />
-/// <reference path="./.next/types/routes.d.ts" />
+import "./.next/dev/types/routes.d.ts";
 
 // NOTE: This file should not be edited
 // see https://nextjs.org/docs/app/api-reference/config/typescript for more information.

next.config.mjs

@@ -47,6 +47,12 @@ export default withNextra({
     process.env.VERCEL_ENV === "production"
       ? "https://docs-authzed.vercel.app/docs"
       : undefined,
+  // NOTE: we still use webpack instead of turbopack for dev
+  // because turbopack doesn't support non-serializable nextjs options.
+  // The rehypePrettyCodeOptions in the block above include a function,
+  // which cannot be serialized. If nextra figures out how to provide
+  // those options in a different manner or if turbopack starts supporting
+  // them we can migrate.
   webpack: (config) => {
     config.module.rules.push(
       ...[

package.json

@@ -3,8 +3,8 @@
   "version": "0.0.1",
   "description": "Authzed & SpiceDB docs powered by Nextra",
   "scripts": {
-    "dev": "next dev",
-    "build": "next build",
+    "dev": "next dev --webpack",
+    "build": "next build --webpack",
     "postbuild": "./scripts/postbuild.sh",
     "start": "next start",
     "lint:markdown": "markdownlint-cli2",
@@ -29,13 +29,13 @@
     "clsx": "^2.1.1",
     "escape-string-regexp": "^5.0.0",
     "js-yaml": "^4.1.0",
-    "next": "^15.5.7",
+    "next": "^16.1.0",
     "next-sitemap": "^4.2.3",
     "nextra": "^4.6.0",
     "nextra-theme-docs": "^4.6.0",
     "posthog-js": "^1.266.3",
-    "react": "^18.3.1",
-    "react-dom": "^18.3.1",
+    "react": "^19.2.3",
+    "react-dom": "^19.2.3",
     "react-youtube": "^10.1.0",
     "sharp": "^0.34.0",
     "swagger-ui-react": "^5.30.2",