Core SQLite coverage and lineage controls.
| Table | Lineage | Status |
|---|---|---|
| filings | source + filing_url + accession_number | ok |
| news_events | source + source_detail + article_url | ok |
| events | source + source_detail (synthesized) | ok |
| vendor_metrics | source + source_detail | ok |
| prices | source | ok |
Deterministic core payloads; runtime timestamps and run markers live in metadata fields only.