New suppliers collection replacing purchase_orders.supplier (free text)
as the authoritative value, kept alongside it as OCR provenance rather
than dropped -- it genuinely is the supplier name, just inconsistently
formatted, unlike project_code which never held a real project code at
all.
Grounded in production: 24 POs, 19 distinct raw supplier strings, at
least 3 confirmed duplicates under a formatting variant. Migration
auto-merges only exact-normalized matches; anything ambiguous (e.g. two
"Vula" entries that may or may not be the same company) stays separate
rather than guessed.
The accounts-payable rollup (ordered/delivered/outstanding per supplier,
in Rand) is computed live from purchase_order_items and
delivery_note_items every read, never stored -- same reasoning as
po-fulfilment.ts: a stored balance has to be kept correct on every PO,
delivery, and correction, and PocketBase has no transactions to
guarantee that.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
cfefb61c1b