Offline visualization bundles for exported HTML (copied next to the .html as res/).

Re-fetch with: python scripts/download_viz_res.py

Core:
- chart.umd.min.js — Chart.js 4.4.6 (MIT)
- mermaid.min.js — Mermaid 11.4.1 (MIT)
- vis-network.min.js / vis-network.min.css — vis-network 9.1.9

STEM / sim (opt-in via viz_sim_bundle / viz_math_html):
- three.min.js — three.js r160 (MIT)
- matter.min.js — Matter.js 0.20 (MIT)
- cannon.min.js — cannon.js 0.6.2 (MIT)
- katex.min.js / katex.min.css / katex-auto-render.min.js / katex/fonts/* — KaTeX 0.16 (MIT)

See viz_sim_bundle / viz_export_html tool usage.
