e0e4f709b6
Selected-day panel below the month grid now renders as a proper vertical timeline: time labels in the left gutter, continuous track line with circle markers, and white cards for each item. All-day tasks and events get a stroke circle; timed entries get a solid colored dot; workout gets a dumbbell icon; completed items show a checkmark circle with strikethrough. Tasks can be toggled directly from the timeline card. Cal events show end time as subtitle. Empty state shows a calendar icon.