I used this for a POC analytics dashboard for a client recently.

Very very good, nice work.

What are your plans for the library?

nice, that's great to hear! The plan is to push towards being the best TypeScript semantic layer for ClickHouse apps. The big gaps I’m focused on are governance, contract snapshots/diffs, relationship-aware queries, richer metrics/time semantics, BI/GraphQL connectivity and better generated tooling.