Page view: header + split-pane markdown editor (textarea on left,
marked + DOMPurify rendered preview on right) + backlinks card pulling
/api/pages/:id/backlinks. Save calls PATCH /api/pages/:id with body_md
and surfaces the resulting updated_at as a timestamp.
Reference detail: media block (image preview / YouTube embed via
youtube-nocookie / link fallback), summary card, metadata table, tags
card with attach/detach (creates the tag idempotently then attaches),
linked-from card from /api/links/to/ref/:id.
marked + DOMPurify vendored to public/vendor as ESM. The markdown
editor uses the explicit html: opt-in on dom.js's preview element
only — all other text comes from textContent.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
ee582640ea