1.3.1

Save Backup Safety Checks

• Before backing up your save data, the app now checks if your SD card has enough free space (requires 2x the save file size).
• If space is low, a warning dialog shows how much space is available vs. needed, with the option to continue without a backup or cancel.
• If a backup fails for any other reason, you'll get a similar prompt before proceeding — no more silent failures.

Bank Creation Space Check

• Creating a new bank now checks available SD card space first.
• If there isn't enough room, an error dialog shows the free and required amounts instead of attempting (and potentially failing) the write.
• Overwrite / save of existing banks remains unchanged.