index.html now loads /api/fonts/fonts.css, synthesized at request time
by goods-editor's mountEditorApi from the host's fonts/ directory
(populated via fetch-fonts in goods-editor-module — the host-local
fetch script shrinks to a pointer). Shipped synchronously in <head>
on purpose: the module's runtime injector races first paint and the
editor's text measurement gives wrong answers against fallback
metrics until real fonts load.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
