The tab opened on Quickstart, buried "What is LanceDB?" inside it, and put
everything else under a single Guides group that had to be expanded before any
section was reachable. Model training sat outside it for no reason.
Reorganize around what a user does, in order: Introduction, Catalog, Ingestion,
Search, Feature engineering, Training, Maintenance, SQL. Guides is gone as a
level, so each section is one click.
New pages: catalog overview and database, and a compaction page under
Maintenance. tables/update covered four separate operations, so it becomes the
Ingestion section — insert, merge insert, update, delete — with insert drawing
on the large-dataset material from tables/create. Its old URL redirects.
Agentic skills move to their own tab after API Reference.
