API origin; defaults to HATANG_BASE_URL, then EMAIL_API_URL, then https://api.hatang.dev.
Optionalenvironment
environment?:"production"|"development"
Payments only: which environment to use. Sent as the Hatang-Environment header; without it a ht_test_ key uses development and any other key production.
API origin; defaults to
HATANG_BASE_URL, thenEMAIL_API_URL, thenhttps://api.hatang.dev.