Extracts the TOC-injection pattern into a reusable component:
src/components/toc-sidebar.js
injectTocTop(id, element) — prepends an element to #observablehq-toc,
removing any previous instance with the same id first so reactive cells
can re-inject on each poll without accumulating duplicates.
decisions.md now uses injectTocTop to place a single widget (live
indicator + Decision Health KPI box) into the right-column sidebar,
removing the standalone live-indicator cell and the ad-hoc id/remove
pattern that was previously inlined.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
