{"ok":true,"service":"profprep-corpus","role":"ProfPrep grounding retrieval adapter (bge-m3 -> pgvector reference_chunks, hybrid RRF)","embed_model":"@cf/baai/bge-m3","store":"pgvector reference_chunks (Supabase), match_reference_chunks_hybrid","vectorize":"RETIRED (grounding-estate M7, 2026-07-31 — zero readers/writers)","writer":"profprep-corpus-sync (reference_sources -> reference_chunks)","note":"reached via CORPUS service binding + kit corpusQuery(); retrieval only; no crons"}