Server-rendered Kanban board with 4 status columns (Pending, Active, Paused, Completed), task cards with category colors and elapsed time, filter bar with category chips and subtask toggle, and inline create task form. All handlers support htmx partial updates for status transitions (start, pause, resume, complete, abandon, create). Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>