Start an internal link analysis

Has AI read the brand's crawled pages and suggest internal links worth adding. This SPENDS AI CREDITS, 1 per page read - always tell the user how many pages and credits first (from internal_link_analysis) and get their go-ahead. mode 'changed' reads only pages that are new or changed since the last analysis; 'all' reads every page again. scope narrows it to one folder, one topic group or up to 500 specific pages; leave it out for the whole site. Suggested links can point anywhere on the site whatever the scope. To get links pointing TO one page instead (for a page nothing links to), use scope kind 'linksTo' with its address: AI picks up to 5 pages that talk about its subject, reads them, and it costs 1 credit in total. Nothing on the live site changes: it only produces suggestions to review with internal_link_suggestions. Runs in the background, one at a time per brand; poll internal_link_analysis for progress. Returns 402 when the credits do not cover it.