Second steer from the 2026-11-06 discussion: the document-vs-code
split carries a false distinction. The core is contexts + templates +
partials to text; HTML, Rust, and WGSL are three data points of the
same shape (handlebars native case, reader POC, alkminer kernel
builder). Per-target residue is only the template set, context shape,
emit posture, and validity pinning. WGSL recorded as confirmed coming
(JS runtime needs codegen generating WGSL); AGENTS.md lifecycle
phrasing aligned.