The merchant /pins POST was reading store_id as a query parameter, but
the shared loyalty pins JS factory sends the form (including store_id)
as a JSON body — matching the store-side endpoint, which gets store_id
from the JWT and ignores any body field. Result: a 422 "Field
required" on every PIN create from /merchants/loyalty/pins.
Add PinCreateForMerchant (PinCreate + store_id) and switch the
endpoint to it. Validation that the store belongs to the merchant is
unchanged.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Samir Boulahtit
cb8e6a0ec3