TypeScript implementation of InterLab

Just a sketch for now, but seems easy enough to do seriously. Might be useful in some in-browser projects and demos.

A lot of stuff is missing (memory, formatter)
Would need merging of the Context code here and in context browser.
- We intend to rename Context to LogNode or TraceNode
What is the best equivalent of Jupyter notebooks for easy in-browser experimenting?
Figure out integrations (replace pyplot, context display and storage, use LangChain.js or another API wrappers, ...)

acsresearch / interlab