listContacts returns a bounded page from the account-wide contact collection.
Example
Inputs
limit defaults to 50 (maximum 1,000), offset to 0, and sort to desc.
Optional filters are RFC 3339 createdSince and modifiedSince, Brevo
attribute filter expression, up to 20 positive contact ids, list names/IDs,
or positive segmentId. Lists and segment cannot be combined. account
selects the Brevo binding.
Output
Returns{ count: number; contacts: Contact[] }; see Get contact. count is the matching total. Increment offset by the number returned to page through results. List names require an additional complete list-name resolution before the contact query.