[BUG] File picker not working in Secure Folder after One UI 8.0

Checks

• I have read the FAQ section, searched the open issues, and still think this is a new bug.

Describe the bug you encountered:

When trying to open a local database, both KeePass2android regular and notnet, when installed inside a Samsung Secure Folder on a device running One UI 8.0 and Android 16, no longer list files inside the same Secure Folder. Only files outside the secure folder are shown in the system file picker.

The issue appears to be related to the recent update to Secure Folder that shipped in One UI 8.0, although I haven't used KeePass on my phone for a while (so the issue could perhaps be unrelated to the update after all).

Tested with the KeePass2android versions available in the Play Store right now: (regular) 1.13-r1 and (nonet) 1.14-r0.

Describe what you expected to happen:

When installed inside the Secure Folder, it should (only or at least optionally) list the files inside the Secure Folder.

What version of Keepass2Android are you using?

regular: 1.13-r1; nonet: 1.14-r0

Which version of Android are you on?

16

No files, tests, or entry points are named. Reproduce the file-picker behavior inside Samsung Secure Folder on Android 16 with One UI 8.0, then trace the app's local-database opening flow and compare the available file locations. Done means files inside the Secure Folder are listed or the supported limitation is documented.