No access to ref within jsCode in v2 SDKs

[ersinakinci]

Describe the bug
The new v2 SDKs don't pass a variable representing the framework component content JS scope (i.e., ref in the old React SDK), nor a variable for accessing the component's DOM element (i.e., ref.ref in the old React SDK). See https://github.com/BuilderIO/builder/blob/08a5a8d7cfb9612651d2b71839968be2d5da2f7f/packages/sdks/src/functions/evaluate.ts#L49C9-L62. Attempting to access ref or ref.ref from within content JS while running a v2 SDK results in an error.

To Reproduce
Try rendering a content item that has content JS that uses ref or ref.ref with a v2 SDK.

Expected behavior
I should be able to access the rendering component for the content with ref or the component's DOM node with ref.ref.

Screenshots
N/A

Additional context
Is ref and ref.ref only available in the React SDK? It's never been officially documented, even though it's a common (if advanced) use case. There needs to be a standardized way to access the component container in order to do DOM manipulations that can't be handled within the Visual Editor.

I created an open source library that contains a helper for working with ref: https://github.com/buildquick/buildquick/tree/main/packages/builder-utils#waitforrefelement. I'm concerned that it won't work anymore with the v2 SDKs and that my clients' sites will stop functioning correctly once they eventually upgrade.