@astrojs/vercel 11.0.13: functions crash with "Cannot find native binding" (rolldown)

Minimal reproduction: Astro 7.3.8 + @astrojs/vercel 11.0.13, one prerendered page and one on-demand page (src/pages/ssr.astro, prerender = false).

On Vercel

Deploy this repository. / works; /ssr returns 500 FUNCTION_INVOCATION_FAILED and the function log shows Error: Cannot find native binding from rolldown.

Locally (no Vercel needed)

npm install
npm run build
grep -n 'import "rolldown"' .vercel/output/functions/_render.func/.vercel/output/server/entry.mjs
cp -R .vercel/output/functions/_render.func /tmp/fn
cd /tmp/fn && node --input-type=module -e "await import('./.vercel/output/server/entry.mjs')"

The packaged function imports rolldown, but its platform binding is not traced into the function (node_modules/@rolldown/ only contains pluginutils), so importing the entry throws Cannot find native binding.

With @astrojs/vercel@11.0.12 the entry does not import rolldown and loads fine.