/// Dashboard application state, execution engine, and task scheduling logic.
/// Terminal event handling (key presses, resize, tick) for the TUI.
/// PTY session management — allocates pseudo-terminals for Stargate agent panes.
/// UAT TUI application state machine for interactive finding capture.
/// UAT TUI rendering — layouts and widgets for the UAT interface.
/// Dashboard rendering — task board, agent output panes, and event log widgets.