A GUI/launchd-spawned daemon has no TERM in its environment, so child shells
inherited none and tput/zsh/ncurses failed ('tput: No value for $TERM').
The PTY now defaults TERM=xterm-256color and COLORTERM=truecolor (matching
xterm.js) unless the caller already provides them. Adds a regression test.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
vasyansk
