The message box stays at the bottom of the task column however the timeline scrolls. Over the
input, what the message carries (ui_ai_tray.js): pictures with ✎ to mark up (sent on their own)
and ×, chips for what "@" names; gallery pictures are attached, not typed in as "@name". Beside
it the gallery and materials buttons with their counts; the input grows (Enter sends,
Shift+Enter breaks the line) and pictures alone may be sent. "New steps below" appears when the
AI adds steps while the user reads further up; one's own message scrolls into view. Pictures a
message carries show as small image cards with the usual tools. The ready page keeps the big
gallery and what is ready; the box below takes its pictures.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
