Adds taskCount virtual field on Project entity, delete button in ProjectDrawer
(visible only when taskCount === 0), and a reusable ConfirmDeleteProjectModal.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Replace 30+ hardcoded strings across 15 components with $t() calls.
Added keys for common actions, drawers titles, empty states, and modals.
Ticket: T-020
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Allow projects to be archived/unarchived from the ProjectDrawer, with a
toggle filter on the projects page to show/hide archived projects.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
