UQ reorg · Render + deploy reorganized site and rebuild paper PDF

[mdenolle]

The reorganization landed as source only (this pass did not render). Close the loop:

• Physically merge/delete the executable pages per UQ reorg · Page 1: Measurement UQ (merge + processing-choice sampling) #3/UQ reorg · Page 2: Depth UQ (frequency → depth propagation) #4/UQ reorg · Nav, cross-links, delete old pages #6 (measurement-uq + processing-depth §1–2 → page 1; processing-depth §3–5 → page 2), or keep the re-badged pages — decide with UQ reorg · Nav, cross-links, delete old pages #6.
• Re-render the Quarto site with the pixi kernel (export QUARTO_PYTHON=$PWD/.pixi/envs/default/bin/python && pixi run quarto render quarto/); commit quarto/_site + quarto/_freeze. New page uncertainty-3-stress.qmd is prose-only (no kernel needed).
• Rebuild the paper: python paper/build.py → regenerates paper/manuscript.tex (currently stale: the .qmd is the source of truth and carries the new Parts 2–3 + tables).
• Deploy to gh-pages (push to master triggers .github/workflows/quarto.yml).

Until this runs, the live site and committed manuscript.tex/_site lag the reorganized source. See quarto/REORG_PLAN.md §7 for build mechanics.