How to specify the warehouse information when creating a Lance catalog

I notice that we need to specify the warehouse information when creating an Iceberg catalog, which enables the Iceberg REST server to know where to operate on the Iceberg metadata files. Why is this information not required for creating a Lance catalog?

The issue names no files, tests, or entry points. Compare the Iceberg and Lance catalog-creation paths, then confirm why warehouse information differs and what configuration users should expect. Done means the behavior and rationale are clearly documented or answered.

Written by the indexing model from the issue text.