Copies the patient's retrieval vectors into the eval_ namespaces (copy-only; production namespaces
are read, never mutated) and returns the per-namespace counts plus the total. Not part of the DB
transaction — Pinecone is not transactional; the copy is idempotent upsert, safe to re-run on retry.
Copies the patient's retrieval vectors into the eval_ namespaces (copy-only; production namespaces are read, never mutated) and returns the per-namespace counts plus the total. Not part of the DB transaction — Pinecone is not transactional; the copy is idempotent upsert, safe to re-run on retry.