architecture.md gains a "UI layout: one core, two skin trees" section — the
folder map, the barrel contract that lets main.ts stay ignorant of both trees,
why duplicate selectors across trees are safe, and where a new rule belongs
(core / a skin / shared tokens). Its "Window kinds" section now describes
two-axis root selection, and the "Skins" section is no longer stale prose about
a deleted design: it covers the stylesheet split and the two-phase nature of a
skin change (CSS live, tree and frame at next window open).
gotchas.md gains a section for the split, all of it earned during the work:
`.win7` cannot be renamed because 7.scoped.css is precompiled against that
literal; reach core through @core/* rather than relative paths, which is what
let 67 imports survive two relocations; @font-face url() rebases when a
stylesheet moves and fails silently; the @layer statement must stay first;
duplicate selectors across trees are safe; and ngtsc type-checks components
nothing imports, so a green build does say something about the inactive skin.
Also corrected the component paths that moved under skins/, and the
updater.service.ts link that moved under core/. Checked every ../ link in
docs/ resolves.
Co-Authored-By: Claude <noreply@anthropic.com>
jgamboaandClaude
5bbfc2f475