Complete docs-writer run checklist

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: Sessions page re-verified on prod (plan-gated, so only the not-on-plan card was photographed), plus the 2026-11-03 v1.3.1633 changelog day. Guides and Reference not due. Quick gate green. PR #7861 queued to the merge lane. Memory: none applied.