v0.71.23

Fixed

• Task reminders no longer drift by the timezone offset on every save: a task reminder was stored as UTC but read back as local time, so reopening a task in a non-UTC timezone showed the wrong offset (e.g. "1 hour before" became "Custom – 360 minutes" at UTC+5), and each save without changes added the offset again. Reminder times are now read back as UTC consistently, so the offset round-trips correctly and stays stable across repeated saves.