Scroll-follow policy (CopilotChat's autoScroll vocabulary + the 'hold-on-send' extension):
'pin-to-bottom' follows growing content while the user is near the bottom; 'pin-to-send'
starts unpinned (the consumer re-pins via scrollToBottom when the user sends);
'hold-on-send' follows like pin-to-bottom but the consumer parks the view via unpin when
the user sends, so the answer streams in place; 'none' never auto-scrolls.
Scroll-follow policy (CopilotChat's autoScroll vocabulary + the 'hold-on-send' extension): 'pin-to-bottom' follows growing content while the user is near the bottom; 'pin-to-send' starts unpinned (the consumer re-pins via
scrollToBottomwhen the user sends); 'hold-on-send' follows like pin-to-bottom but the consumer parks the view viaunpinwhen the user sends, so the answer streams in place; 'none' never auto-scrolls.