crashes after opening the browser

repro:

- npm i
- npm run dev
- open http://127.0.0.1:1999

```
firehouse-chat/node_modules/partykit/dist/bin.mjs:96377
throw err;
^

TypeError [ERR_INVALID_ARG_TYPE]: The "strategy" argument must be of type object. Received type number (0)
at new ReadableStream (node:internal/webstreams/readablestream:253:5)
at safeReadableStreamFrom (firehouse-chat/node_modules/miniflare/dist/src/index.js:7975:10)
at #handleLoopback (firehouse-chat/node_modules/miniflare/dist/src/index.js:8137:36)
at Server.emit (node:events:531:35)
at parserOnIncoming (node:_http_server:1150:12)
at HTTPParser.parserOnHeadersComplete (node:_http_common:118:17) {
code: 'ERR_INVALID_ARG_TYPE'
}

Node.js v22.9.0

Process finished with exit code 7
```