The item-name backfill (a one-time migration that derived item_name from item_data) is no longer relevant — ingest now populates the column. Remove the whole capability:
app/admin/backfill/ (page + run-panel), the /admin/backfill nav link (AdminNav) and overview card (app/admin/page.tsx).backfillItemNamesAction + the lib/sql/itemNames and lib/itemName imports in lib/actions/admin.ts.lib/sql/itemNames.ts, lib/itemName.ts (+ test/unit/itemName.test.ts) — used only by the backfill (display reads the stored item_name).scripts/backfill-item-names.ts + the backfill:item-names package script.Surfaced when the admin-mode nav (PAR-161) exposed the tool. Follow-up to PAR-161.