Describe the feature

For example, in Cloudflare workers, when combined with workflows, Cloudflare requires exporting the implementation class of WorkerEntrypoint in the entry file. Currently, Nitro 3 does not support exporting from anywhere.

We could create a new entry file and import .output/server/index.mjs, but this has a problem: if we use the same things in the new entry file as in Nitro 3 (e.g., ORM), the code will be packaged and deployed twice.

My workaround is to allow exporting content from server.ts. After a Nitro build, this will also be exported to .output/server/index.mjs.

I'd love to help with this, but I haven't found any documentation or anything related to the Nitro plugin. Of course, I don't want to rely on AI to do it.

Additional information

• Would you be willing to help implement this feature?