How to access `ctx.env` in partyserverMiddleware. Isn't `ctx` exposed on the middleware? ``` app.use( '*', partyserverMiddleware({ options: { onBeforeConnect(req, lobby) { const url = new URL(req.url); const token = url.searchParams.get('token'); >>> access env variable ctx.env.JWT_SECRET ? // validate token // set header req.headers.set('X-User-Id', 'account id'); }, }, }) ); ```