DASH: An oh-my-pi style terminal TUI plugin for dsh

DASH is a terminal TUI plugin developed by songqikong under the MIT license. Instead of refactoring the backend, it encapsulates the DSH official agent kernel into an oh-my-pi style interactive interface, launched via `dsh --profile dash`. Its core advantage lies in providing a terminal experience close to that of a professional editor, supporting multiline input, kill-ring, undo, and file completion. Functionally, DASH fully reuses DSH's tool calling, session persistence, and official Agent presets (such as Standard and PTC), while introducing a multimodel role system (default/smol/plan/task) that allows users to flexibly switch models and thinking depth. Furthermore, it supports session time travel,