Redesigned chat right panel and deck style picker
A redesigned chat right panel, a new style picker for decks, and model names on assistant turns — plus fixes for Mermaid flicker and dropdowns.
Highlights
- Redesigned the chat right panel and added a style picker for decks.
- Assistant turns now show which model produced them.
Fixes
- Fixed Mermaid diagram flicker, expand-down pinning scope, dropdown direction, and the fork icon.