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>
Register Razor Pages services and middleware in Program.cs, removing
UseDefaultFiles() since Razor Pages handles routing. Add shared layout
with dark-themed app shell (header, nav links, search/new-task buttons)
and vendor script references for htmx, Sortable, and Chart.js.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
