Client-facing companion to the RFC, aimed at the POS Mobile and Backoffice
teams: endpoints and payloads for setting up a weight product, placing an
order, rendering the line, and voiding, refunding or splitting it.
Documents two gaps the teams have to work around rather than discover:
unit_id is not yet enforced when sell_by is "weight", so Backoffice must
require it in the form; and money rounds to 2 decimals rather than whole
rupiah, which is still an open decision.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>