- Revert touch-action: none on .xterm-viewport so xterm.js can fall back
to its own viewport scrolling when the custom handler doesn't take over.
- Detect alternate screen via reference equality
(term.buffer.active === term.buffer.alternate) instead of the
string, which could report normal buffer incorrectly.
- Lower vertical-scroll activation threshold from 4px to 2px and only
prevent default once a vertical gesture is recognized.
- In normal buffer use term.scrollLines() so xterm.js handles the buffer
scroll consistently; in alternate screen continue sending SGR 1006
mouse-wheel sequences to tmux/vim.
Quality gates: typecheck, lint clean, npm test -- --run 87 passed.
Developer
2ece7074f6