The SMS gateway is domestic-only, but OTP sends fanned out to any phone
on the account - a foreign number meant a code queued into the void
while the response claimed success. isDomesticPhone (+2519/+2517 E.164)
now gates SMS: dual-channel sends with a foreign phone go email-only
(the phone stays on the row so verify still matches it), and a
phone-only foreign target still tries SMS as the only route. The
staff-triggered reset exposes phoneIsDomestic so the backoffice disables
the SMS channel with an explanation, and the API refuses the channel
directly for foreign numbers.
EDRFREIGHT-186
