Wraps + heights are column-dependent, so a width change must remeasure
every row and the renderer must repaint the full viewport.
- Key virtualRows on cols so React remounts wrapped rows on resize.
- Snap back to bottom after sticky-mode resize once React rerenders.
- Reserve a scrollbar + gap column in transcriptBodyWidth (non-termux).
- Full repaint on any viewport height change (was: shrink-only).
- ScrollBox scrollHeight uses deepest child bottom so sticky-bottom
math can reach the real final rendered row after reflow.
- DECSTBM fast-path now requires full container rect match.
Brooklyn Nicholson
0277194e3b