Add pgvector embeddings on cards, server-side cohere/embed-v4.0 via AI
Gateway, kNN identify route, and L0→L1→L2 client orchestration with
empty-index fast escalate and id-cursor backfill job.
Co-authored-by: Cursor <cursoragent@cursor.com>
Move Layer-1/Layer-2 identify flow, outcome resolution, disambiguation
refine helpers, and scan-for-review API calls into lib/scanner-card-identify.js.
Remove unused manaSymbolSettings state from CameraScanner.
Co-authored-by: Cursor <cursoragent@cursor.com>