New: optional system-file read access for the File Browser.
- New: download system files from read-only partitions (issue #241).
A new toggle in Settings → Allow downloading system files (OFF by
default) lifts the writable-root allowlist for FS_READ/FS_HASH
operations only. When enabled, the File Browser can download files
from/system/common/lib,/system_data/priv,/system_ex, and
other read-only system partitions — useful for dumping.sprx
modules, fonts, and other system assets. This is strictly read-only:
destructive operations (delete, move, chmod, mkdir, copy, write,
mount) ignore the flag entirely and always enforce the full
allowlist. Path traversal (..) guards still apply even in unsafe
mode. When the toggle is off and a system path is requested, the
error message points the user to the Settings toggle rather than
giving a generic access-denied error.