Whole-text JSON payloads (a leading { or [ that parses) open on the shell's
JsonTree inspector instead of markdown: the switch offers Raw|JSON there
(markdown is meaningless on structured payloads), the tree opens two levels
deep via the expanders' own click path (focus restored, capped at 100), and
an expanded row drops its inline preview Chrome-DevTools style. The JsonTree
faces are pinned per baseline and probed by the compat matrix.