[BUG] Image caching is broken in version 3.0.0

[Lssg97]

Description

In version 2.8.1, images that had been viewed were cached normally, and reopening them without clearing the cache did not require re-downloading. After updating to version 3.0.0, I found that all previous cache entries had become invalid. After clearing the cache, images could be cached normally when viewed again, but after exiting the viewer and re-entering, they had to be cached again—even without fully quitting the app. After caching an entire 1.8 GB gallery once, I exited and checked the cache size in Settings, and it was only 800 MB.

Checklist

• If possible, I've reproduced the issue using the latest version of this app.
• This issue hasn't been addressed in an existing GitHub issue or discussion.

Expected behavior

Image caching should persist long-term, just like in version 2.8.1.

Actual behavior

Image caching is broken in version 3.0.0

Reproduction steps

1. Browse a gallery, wait for the images to download and cache.
2. Then go back to the previous screen.
3. Enter the gallery again to view them.

EhPanda version information

3.0.0 (installed via E·Sign)

Destination operating system

iOS 26.5.1

Destination device

iPhone 17 Pro

[Lssg97]

Oh, by the way, here’s a suggestion for optimizing a page element: on the gallery page, the three buttons “Favorite,” “Download,” and “Read” have inconsistent spacing. It’s really uncomfortable for people with OCD to look at.