v0.82.0

• Fixed: editing a long Markdown document no longer pegs the CPU. Glamour draws the document in runs of top-level blocks, each cached, so an edit redraws only the run it touched (output byte-identical); Tasks and Elements no longer copy the source per item. 10 edits on a 3,000-line doc: 3.0 s → 0.8 s CPU.
• Added markdown.wrap, default true: the Markdown block editor soft-wraps a long line at the last space that fits as you type (a word wider than the pane breaks at the edge), a list item's next rows under its text; the source gets no line breaks. false keeps the sideways scroll.
• Added Input.Wrap and Input.WrapIndent (soft wrap in InputBlock, off by default) and InputRows(in, width).