The "Agent will work in-place at …" banner used to render directly above
the comment input, which made it read like an input adornment. Move it
to the top of the Activity section (below the "Activity" heading, above
the live agent card) so it reads as section context instead of composer
chrome. Update the component's JSDoc and tweak the margin (mb-2 → mt-3)
to match the new placement.
MUL-2752
bed032f937