Replace the close button and heading with fold/unfold controls that collapse the panel to a slim right-edge tab showing the creature name vertically, and add a pin button (xl+ viewports with creature loaded) that opens the creature in a second left-side panel for simultaneous reference. Fold state is respected on turn change. 19 acceptance tests. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>