Drop the redundant header row (duplicate percentage badge + collapse
chevron), the "Why this is appropriate/less appropriate:"/"Why this
is incorrect:" heading labels, and the nested sub-box - now that
these cards live inside their own choice's colored border, all of
that was repeating what the color and position already say. Both the
selected-wrong-choice resolved follow-up and the never-selected
distractor cards now just show the plain explanation sentence, with
the leading "Correct."/"Incorrect." verdict word stripped too.
Removing the toggle chevron removes the only way to reach the
collapse/expand behavior, so that machinery (_collapse_resolved_followups,
_toggle_followup_state, the "collapsed" state field) comes out too
rather than linger unreachable.
hz
b3a8dec379