This endpoint uses the Weibo mobile (m.weibo.cn) H5 API and relies on the server-side cached logged-in cookie; an expired cookie results in an error
Paginate by incrementing page; there is no more data once data.list.next_page is empty or 0
Each page returns 20 items. Weibo filters out some accounts (blogger self-protection strategy), so the actual number of items in a page may be less than 20
Weibo limits the pagination depth of the followers list (in practice users becomes an empty array and next_page becomes 0 after roughly 1000 records)