Ink's applyDisplayStyles hides any present `display` that isn't 'flex'
(DISPLAY_NONE); vue-tui hid only on exact 'none', leaving off-spec values
(reachable via TS-bypass — the prop type is 'flex'|'none') visible. Align: the
yoga display setter now hides any present (non-null) value except 'flex',
matching Ink even for non-string junk (display={5}). The blessed A19 divergence
is preserved — a removed/undefined display (null) still resets to the visible
default (Vue can't distinguish display={undefined} from an omitted prop).
Removes the now-obsolete A21 entry from .agents/docs/ink-divergences.md (the
A19 "removed display resets to visible" entry remains).
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Yunfei He
d7c62f9b3a