fix: undated tasks were landing in the widget's scheduled-events grid

ComputeDaySection unconditionally recomputed IsAllDay from a
midnight-time heuristic, clobbering the IsAllDay:true flag callers set
to mark floating (no-due-date) tasks -- since undated tasks use Time =
now, this silently reset IsAllDay to false and gave them a real Start,
so the widget could render them via EventBlock/HourRow instead of
TaskRow. Their click handler always opens the calendar/source URL, so
tapping a no-due-date task (e.g. a Google Task) opened Google Calendar
instead of the task detail sheet.

ComputeDaySection now only ever sets IsAllDay true, never clears an
already-true value. Also flag IsAllDay for undated Google Tasks, which
never got it set at all (only native undated doot tasks did).

1 files changed, 7 insertions, 0 deletions

diff --git a/internal/handlers/timeline_logic.go b/internal/handlers/timeline_logic.go
index e3da760..b008221 100644
--- a/internal/handlers/timeline_logic.go
+++ b/internal/handlers/timeline_logic.go
@@ -146,6 +146,13 @@ func BuildTimeline(ctx context.Context, s *store.Store, start, end time.Time) ([
 				IsCompleted:  gTask.Completed,
 				Source:       "gtasks",
 				ListID:       gTask.ListID,
+				// No due date -- flag IsAllDay like nativeUndated tasks below so
+				// TimelineItemToWidgetItem leaves Start nil instead of pinning it
+				// to "now", which otherwise lands it among scheduledEvents and
+				// renders it via EventBlock/HourRow -- rows whose click handler
+				// always opens the source URL/Google Calendar, not the task's
+				// detail sheet.
+				IsAllDay: gTask.DueDate == nil,
 			}
 			item.ComputeDaySection(now)
 			items = append(items, item)