CJK text & IME input

Two families of bugs that English-only testing never surfaces: line breaking (CJK text wraps differently) and IME composition (characters are composed across multiple keystrokes, so key events lie).

This skill is East-Asian glyph rendering + input. For the broader multi-language copy layer — text expansion breaking layout, CLDR plural categories, Intl number/date/currency formatting, RTL and lang/dir markup — use i18n-copy-and-layout.

Line breaking