Fixed

• Scrolling back through a terminal's history works on macOS 26. The 0.12.8 fix made the per-pane helper layers transparent to the mouse, but the invisible layer that carries the pane's toolbar and title sits above those and still swallowed the scroll wheel and trackpad on macOS 26. That layer now passes every mouse event straight through to the terminal, so scrollback responds right away. macOS 15 was never affected.