Project · Tasks: priorities, issues, statuses, assignees, task rows

A new chapter, src/project. PriorityIndicator shows how urgent a task
is in three bars, urgent in red, its words in a tip or beside it.
IssueIdBadge names an issue by its team's key and number, as ENG-123.
StatusSelect picks a status from the workflow, each with its mark, and
AssigneePicker picks a person or no one; DueDatePicker is the forms
DatePicker. TaskItem is a task in a row: its box, priority and issue,
its title, then its due day, red when past and still open, and who has
it. TaskList puts them in a SelectableList: arrows move, Enter opens,
and a box's press or keys stay at the box. SubtaskList is the
documents Checklist, which gains a field that adds a step on Enter.

Along the way: forms::Choice::avatar leads a person's row with their
initials, in lists and in a Select's trigger; ListItem::struck strikes
a closed task's title; typography::Ellipsis now shapes with the text
style's run, so a strike or underline on its box shows; two Lucide
icons, circle-dashed and circle-dot-dashed.

tasks/ch31-43.md

@@ -1,25 +1,34 @@
 # Chapters 31–43
 
-## T31 Project — `src/project`
+## T31a Project · Tasks — `src/project`
 
+- [x] PriorityIndicator
+- [x] IssueIdBadge
+- [x] StatusSelect
+- [x] AssigneePicker
+- [x] DueDatePicker → `forms::DatePicker`
+- [x] TaskItem — check, priority, due date, assignee
+- [x] TaskList
+- [x] SubtaskList → `documents::Checklist`, which gains a field to add one
+
+## T31b Project · Issues and boards
+
+- [ ] IssueCard
+- [ ] LabelManager
 - [ ] KanbanBoard / KanbanColumn / KanbanCard
-- [ ] TaskList
-- [ ] TaskItem — check, priority, due date, assignee
+- [ ] Sprint Board → `project::KanbanBoard`
 - [ ] TaskDetailPanel
-- [ ] SubtaskList
+
+## T31c Project · Plans
+
 - [ ] GanttChart / TimelineView → `charts::GanttChart`
 - [ ] Roadmap
-- [ ] Sprint Board → `project::KanbanBoard`
 - [ ] Burndown Chart
-- [ ] PriorityIndicator
-- [ ] StatusSelect
-- [ ] AssigneePicker
-- [ ] DueDatePicker → `forms::DatePicker`
-- [ ] LabelManager
-- [ ] IssueCard
-- [ ] IssueIdBadge
 - [ ] MilestoneProgress
 - [ ] WorkloadView
+
+## T31d Project · Time and databases
+
 - [ ] TimeTracker
 - [ ] Pomodoro Timer
 - [ ] DatabaseView (from T21c) — table, board, gallery, calendar, timeline