Node.js Compat

[MendyBerger]

Many npm packages fail to run with jco transpile because they depend on NodeJS built-ins and globals like Buffer and process that are missing in wasi environments. I'd like to propose adding a Node compatibility mode to automatically polyfill these APIs and inject required globals during the componentization process.

This integration would allow jco to handle node:* imports and common globals out of the box, making the massive npm ecosystem significantly more accessible to the Component Model with a simple flag like --node-compat.

[MendyBerger]

See https://github.com/unjs/unenv for a polyfill with pretty good api coverage

[vados-cosmonic]

Hey Mendy this is a great idea, and it sounds basically like how we have discussed how to do it in the past at the JS meetings -- would be happy to review some PRs and offer guidance on this!

[andreiltd]

If this is any help, here is my hacky attempt at making unenv + componentize-js working for probot application:

https://github.com/andreiltd/probot-wasm