Exact name lookup — returns the first thought matching the name exactly. Requires npub for credit billing.
⚠️ NOT AUTHORITATIVE. Backed by the vendor's name index, which is known to be
incomplete on large brains (upstream: TheBrainTech/thebrain-api-quickstart-python#1):
a hit is real, but a MISS is NOT proof the thought is absent. Never conclude a
thought does not exist from a null result here — verify by ID with get_thought, or
by graph traversal from a known neighbour, before creating a duplicate.
Connector