content_hash/indexed_hash change detection + reindex_case_law from stored
full_text (no re-OCR) + drift health-check. Verified vs 3+ sources (content-
hash change detection, RAG re-embed-on-edit). #61.2 multimodal backfill closed:
42 rows are text-ingested (document_id NULL, no source PDF) — page-images
impossible without a PDF to render.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
