Retrieves Brandfetch-derived brand info for the current account's contact
domain, plus a boolean indicating whether the account already has any brand
kits configured. Used by Glass onboarding to preload the brand kit for new
signups on business-email domains.

Returns brandfetch_brand with nil primary_color/logo/domain for
free-mail domains, Wistia's own domain, when the Brandfetch feature
flag is off, or when Brandfetch has no data — the caller silently
skips the preload in every such case. The object itself is always
present; only its fields go nil.

Requires api token with one of the following permissions

(any scope allowed)

Tokens with the "Act with a team member's permissions" permission
(all:delegate_to_contact_permissions scope) can also be used. Requests
made with such a token are authorized using the permissions of the
contact assigned to the token.