CommonMark fence scanner (a closing fence is at least as long as the opening one, tilde fences, quote prefixes), used by every fence scan in the note view; math: Bmatrix, Vmatrix, smallmatrix, array, align, hline, lenient parse where an unknown command becomes one red atom; plain/text/txt code blocks are no unknown language; corpus test against pulldown-cmark over the help vault (0 disagreements on 179 notes). Adds the render audit of the help vault (20 findings).
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Editor previews (colour swatches, arrows, embeds), the 18 obsidian-basics tasks (find and replace
with regex, back/forward, auto-pair, footnotes, folding, search operators, split view, PDF/audio/
video embeds, spelling, drag and drop, pinned tabs, settings) and round 2: ```query blocks, stacked
tabs, pop-out windows, tasks ticked inside embeds, text around an embed, embeds that follow edits,
block menu shortcut. New crates: notescraft-regex (linear-time engine) and notescraft-syntax.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Marcos Paulo