DeepSeek Harness 任务清单插件：官方 todo_write 的增强 fork —— 优先级标签、完整清单渲染、可拖动的会话内浮动任务面板（位置记忆 / 双击复位 / 当前动作显示）

Two main-stage panels for the DSH web GUI: a multi-column kanban board with real execution through DSH sessions, schedules, session rules and auto-cruise automation, plus a task-list workbench whose rows are themselves cards on one canvas, with a navigati