Create an account

Create a new BriefGate account. Returns a session cookie and the account object. The password must be at least 12 characters. accept_terms must be true — the caller is asserting that the person has agreed to the Terms of Service. The optional attribution object (source, medium, campaign, content, term, gclid — each an optional 1-200 character string) records where the sign-up came from for internal reporting; it is stored once at account creation, never returned by this or any other endpoint, and an empty object is treated the same as omitting it.