Documentation writer batch update task

Docs-writer run. Follow apps/docs/WRITER.md on develop. Do each item that is due, all in ONE PR: 1. Screens: one console feature's reference page. 2. Guides: one Get started, Using Jaah or FAQ item. 3. Changelog: the next batch of prod promotions 4. Reference: the Jaah API and Real-time reference against the code. Sign in only through the capture helper. Nothing due: end with no PR.

Docs-writer run: Playbooks re-verified and recaptured on prod (visual check done, list shot no longer clipped); Pagination now states the 422 for >50 owner ids. Guides and Changelog not due. Quick gate green; PR #7562 queued in the merge lane. Memory: none applied.