WikiTemplates gains two fields: an optional css code field injected on
pages that use the template (selectors auto-scoped to a hash-based
.ptf-tpl-* class so templates never collide with each other or the app
shell), and a developer-only html field rendered verbatim (sanitized)
in place of the markdown body when transcluded.
- templateCss.ts scopes/sanitizes CSS, incl. nested at-rules; pages
and the editor live preview inject scoped styles and drop the Card
chrome in favor of a full-width article
- templateHtml.ts sanitizes HTML and splits prepared markdown around
expansion sentinels so raw HTML renders without rehype-raw
- templates.ts adds extractTemplateNames/extractPlaceholders/
extractDirectiveNames; prepareMarkdown threads an htmlTemplates map
- markdown pipeline gains rehype-highlight for fenced code blocks
- styles.css adds wiki prose typography + infobox demo styling
- docs: demo article and Infobox template authoring guide
