181c35b829
Three bundled changes that round out the KB enrichment pipeline (PR #9 commits B/C/D compressed into one — they all touch the same persist surfaces so splitting them would just add noise): B. scrum_master reviews now route accepted review bodies through fact_extractor (same llm_team extract pipeline as inference) and append to data/_kb/audit_facts.jsonl tagged source:"scrum_review". One KB, two producers — downstream consumers can filter by source when they care about provenance. Skips reviews <120 chars (one-liners / LGTM-type comments with no extractable knowledge). C. Verifier-gated fact persistence. fact_extractor now parses the verifier's free-form prose into per-fact verdicts (CORRECT / INCORRECT / UNVERIFIABLE / UNCHECKED). Facts marked INCORRECT are dropped on write; CORRECT + UNVERIFIABLE + UNCHECKED are kept (dropping UNVERIFIABLE would lose ~90% of real signal — the verifier's prior-knowledge base doesn't know Lakehouse internals, so domain-specific facts read as UNVERIFIABLE by default). verifier_verdicts array is persisted alongside facts so downstream queries can surface high-confidence facts (CORRECT) separately from provisional ones (UNVERIFIABLE). schema_version:2 added to both scrum_reviews.jsonl and audit_facts.jsonl writes. Old (v1) rows remain readable; new rows get the field so the forward-compat reader in kb_query can differentiate. D. scrum_master_reviewed:true flag added to scrum_reviews.jsonl rows on accept. Future kb_query surfacing can filter by this (e.g., "show me PRs where a scrum review exists vs only inference" as governance signal). Also carried into audit_facts.jsonl when the scrum_review source path writes there.