fix(widget): pin all-day calendar events to the top instead of losing them

WidgetItem.isAllDay was carried by the client's data model but nothing
ever read it. All-day events had no Start at all, so they fell into the
same floating-task queue as ordinary untimed tasks; if enough tasks were
ahead of one in the queue, SlotPacker could assign it an hour slot past
the visible grid range entirely -- not merely unpinned, actually
invisible.

Server: TimelineItemToWidgetItem now populates Start for all-day
CALENDAR EVENTS specifically (their real event date), while leaving
undated doot/gtask tasks -- also flagged IsAllDay as a "no specific
time" fallback, a different concept -- on the existing nil-Start
floating behavior.

Client: all-day events are filtered out of the hourly grid/floating-task
pipeline entirely, bucketed by day using the new Start date, and
rendered in a new pinned AllDayRow section right after the TODAY/TOMORROW
headers.

0 files changed, 0 insertions, 0 deletions