Function: ensureEmailAvailable()
ensureEmailAvailable():
Promise<void>
Fail fast when the gate cannot deliver codes: the optional email module must be
importable AND configured for SMTP (real delivery). mode: "file" (outbox) or a
throwing runtime means no code reaches a real inbox, so a gate on that config
would silently admit nobody. Called from the plugin’s setup:complete unless
insecure.
Returns
Section titled “Returns”Promise<void>