3d2124ed98f9d343d59da908a9b3a851b61be26a
The controls column (mute/deafen/PTT/echo/record/share/Leave) had no scroll, so on a short window the bottom of it — including Leave — was clipped with no way to reach it; the only workaround was enlarging the window. At a small enough size you couldn't exit the call through the UI at all. Fix: pin Leave at the bottom of the control panel and wrap the controls above it in a scrollable (height Fill). The controls now scroll when the window is too short, and Leave (the exit control) is always visible. Applies to all three room layouts (control_panel is Fill-height in every arm). Build + clippy clean. Manual check: create a room, shrink the window — Leave stays put, controls scroll. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>