Find the canonical Rosetta Stone attribute that best matches a
fuzzy description, semantic phrase, or required schema shape.
Searches the catalog with pagination, describes the shortlist in
one batched call, ranks candidates by name + shape match, and
returns the canonical attribute ID plus close alternatives.
Use when: "find the X attribute", "what's the graph-edge attribute
ID", "look up the email Rosetta Stone attribute", "search the
attribute catalog for Y", "which attribute has SOURCE_ID +
TARGET_ID + IS_DIRECTED".
(narrative-common)
