fix: resolve AsyncLocalStorage + dir issues in custom server, update benchmark script

Co-authored-by: ajnart <49837342+ajnart@users.noreply.github.com>

apps/nextjs/package.json

@@ -5,7 +5,7 @@
   "type": "module",
   "scripts": {
     "build": "pnpm with-env next build && pnpm build:custom-server",
-    "build:custom-server": "esbuild server.ts --bundle --platform=node --outfile=customServer.cjs --external:bcrypt --external:@opentelemetry/api --external:deasync --external:cpu-features --loader:.html=text --loader:.scss=text --loader:.node=text",
+    "build:custom-server": "esbuild server.ts --bundle --platform=node --outfile=customServer.cjs --external:next --external:bcrypt --external:@opentelemetry/api --external:deasync --external:cpu-features --loader:.html=text --loader:.scss=text --loader:.node=text",
     "clean": "git clean -xdf .next .turbo node_modules",
     "dev": "pnpm with-env tsx ./server.ts",
     "format": "prettier --check . --ignore-path ../../.gitignore",

apps/nextjs/server.ts

@@ -1,4 +1,8 @@
+// Must be imported first to set up globalThis.AsyncLocalStorage for Next.js
+import "next/dist/server/node-environment-baseline";
+
 import { createServer } from "http";
+import path from "path";
 import next from "next";
 import { parse } from "url";
 import { applyWSSHandler } from "@trpc/server/adapters/ws";
@@ -15,8 +19,10 @@ const logger = createLogger({ module: "customServer" });
 const dev = process.env.NODE_ENV !== "production";
 const hostname = process.env.HOSTNAME || "localhost";
 const port = parseInt(process.env.PORT || "3000", 10);
+// Resolve the directory of this file so Next.js can find the app/pages dirs
+const dir = path.resolve(__dirname);
 
-const app = next({ dev, hostname, port });
+const app = next({ dev, hostname, port, dir });
 const handle = app.getRequestHandler();
 
 app.prepare().then(() => {