Expose OverdueItems / OpenItems / CompletedItems as separate observable
collections recomputed in LoadForList (and after add / toggle-done).
- OverdueItems: ScheduledFor.Date < Today && !Done
- OpenItems: remaining !Done
- CompletedItems: Done
View renders three sections with eyebrow-style headers:
- OVERDUE (blood accent, only when non-empty)
- TASKS (shown only when overdue is also visible, matching the mock)
- COMPLETED · N (hidden when IsShowingCompleted is false)
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
- Reformat subtitle to "{Weekday}, {Month} {Day} · {open} open".
- Add right-aligned running/review status pill (kbd style).
- Add header icon toolbar: Sort, Eye (toggle completed), MoreHorizontal.
- Wire Eye to IsShowingCompleted [ObservableProperty] on the VM.
- Style add-task row as rounded Surface2 border with dashed Plus circle,
borderless TextBox, and ENTER kbd chip visible on focus.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Added CancellationTokenSource per-load in both DetailsIslandViewModel
and TasksIslandViewModel. Public entry points cancel any in-flight load
before starting a new one. DB calls and collection mutations after awaits
are guarded with ThrowIfCancellationRequested. DetailsIslandViewModel
now sets _subscribedTaskId only after the DB confirms the entity exists,
preventing the SignalR handler from routing messages to a stale load.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
