Add Analytics page with stat cards (open tasks, active time, top category),
Chart.js timeline bar chart bucketed by hour, category donut chart with
legend, and paginated activity feed with htmx "Load more" support.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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>
