fix: correct all-day event resize duration calculation

FullCalendar's end date for all-day events is exclusive (next day at midnight).
When resizing a 2-day all-day task from Jan 15-17, FullCalendar provides:
- start: Jan 15 00:00
- end: Jan 18 00:00 (exclusive)

The previous calculation treated this as 3 days (4320 minutes) instead of
the correct 2 days (2880 minutes), causing tasks to span more days than
intended when resized.

This fix handles all-day events separately by calculating days directly
from the millisecond difference, which already accounts for the exclusive
end date from FullCalendar.

Fixes both Bases calendar view and AdvancedCalendarView.

src/bases/calendar-view.ts

@@ -355,7 +355,21 @@ export function buildTasknotesCalendarViewFactory(plugin: TaskNotesPlugin) {
 				const end = resizeInfo.event.end;
 
 				if (start && end) {
-					const durationMinutes = Math.round((end.getTime() - start.getTime()) / (1000 * 60));
+					let durationMinutes: number;
+
+					if (resizeInfo.event.allDay) {
+						// For all-day events, FullCalendar's end date is exclusive (next day at midnight)
+						// So we need to subtract 1 day to get the actual duration
+						// Example: Jan 15 to Jan 17 (2 days) gives end = Jan 18 00:00
+						const dayDurationMillis = 24 * 60 * 60 * 1000;
+						const daysDuration = Math.round((end.getTime() - start.getTime()) / dayDurationMillis);
+						const minutesPerDay = 60 * 24;
+						durationMinutes = daysDuration * minutesPerDay;
+					} else {
+						// For timed events, calculate duration directly
+						durationMinutes = Math.round((end.getTime() - start.getTime()) / (1000 * 60));
+					}
+
 					await plugin.taskService.updateProperty(taskInfo, "timeEstimate", durationMinutes);
 				}
 			} catch (error) {

src/views/AdvancedCalendarView.ts

@@ -1447,7 +1447,21 @@ export class AdvancedCalendarView extends ItemView implements OptimizedView {
 			const end = resizeInfo.event.end;
 
 			if (start && end) {
-				const durationMinutes = Math.round((end.getTime() - start.getTime()) / (1000 * 60));
+				let durationMinutes: number;
+
+				if (resizeInfo.event.allDay) {
+					// For all-day events, FullCalendar's end date is exclusive (next day at midnight)
+					// So we need to subtract 1 day to get the actual duration
+					// Example: Jan 15 to Jan 17 (2 days) gives end = Jan 18 00:00
+					const dayDurationMillis = 24 * 60 * 60 * 1000;
+					const daysDuration = Math.round((end.getTime() - start.getTime()) / dayDurationMillis);
+					const minutesPerDay = 60 * 24;
+					durationMinutes = daysDuration * minutesPerDay;
+				} else {
+					// For timed events, calculate duration directly
+					durationMinutes = Math.round((end.getTime() - start.getTime()) / (1000 * 60));
+				}
+
 				await this.plugin.taskService.updateProperty(
 					taskInfo,
 					"timeEstimate",