The answer outline (think.plan / thinking.section) was drawn as four think
rows and ticked done as soon as the chart calculation started. The reducer
now keeps the outline only as calculate-row detail; live and history views
share it. Product chose option B on 2026-10-01.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01N4f2nya58RoRu4yEmJgRGE
