chore(dev): enable Turbopack and lift typedRoutes out of experimental

`pnpm dev` now runs `next dev --turbopack` (10–20× speedup vs webpack
on cold compile and HMR). Promote `typedRoutes` out of `experimental`
to match Next 15.5's stable surface; auto-update `next-env.d.ts` to
reference the generated routes.d.ts. Ignore that file in eslint since
Next regenerates it and the triple-slash style is fixed by the
framework.

`next.config.ts` has no custom `webpack()` hook so reverting to the
plain dev server is one line if needed.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

eslint.config.mjs

@@ -21,7 +21,7 @@ const eslintConfig = [
     },
   },
   {
-    ignores: ["client-portal/**"],
+    ignores: ["client-portal/**", "next-env.d.ts"],
   },
 ];
 

next-env.d.ts

@@ -1,5 +1,6 @@
 /// <reference types="next" />
 /// <reference types="next/image-types/global" />
+/// <reference path="./.next/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.ts

@@ -65,9 +65,7 @@ const nextConfig: NextConfig = {
   images: {
     remotePatterns: [{ protocol: 'https', hostname: '*.portnimara.com' }],
   },
-  experimental: {
+  typedRoutes: true,
-    typedRoutes: true,
-  },
   outputFileTracingIncludes: {
     // Bundle the EOI source PDF so the in-app EOI pathway can read it at
     // runtime in the standalone build. Reading via fs.readFile from

package.json

@@ -4,7 +4,7 @@
   "private": true,
   "packageManager": "pnpm@10.33.2",
   "scripts": {
-    "dev": "next dev",
+    "dev": "next dev --turbopack",
     "build": "next build && pnpm build:server",
     "build:server": "esbuild src/server.ts --bundle --platform=node --target=node20 --format=cjs --outdir=dist --packages=external --tsconfig=tsconfig.server.json",
     "build:worker": "esbuild src/worker.ts --bundle --platform=node --target=node20 --format=cjs --outdir=dist --packages=external --tsconfig=tsconfig.server.json",