Fix VFS not intercepting writes for games on SD card

pressure-vessel's default sharing of /run/media and home uses non-recursive
bind mounts that don't propagate FUSE submounts into the container. The
shouldExposeMountPointToPressureVessel function excluded all paths under /run
(isSystemRootPath) and under /run/media (pressureVesselSharesByDefault), so
the fuse.mo2linux mount point was never added to PRESSURE_VESSEL_FILESYSTEMS_RW.

Inside the container, the game saw the real SD card Data directory instead of
the FUSE overlay, so all VFS writes (shader cache, config files, overwrite)
bypassed staging entirely — VFS_staging stayed empty and write-heavy mods like
Community Shaders logged "Failed to save shader" on every compile.

Internal-drive games were unaffected because pressure-vessel's home directory
handling is recursive and propagates FUSE submounts correctly.

Fix: detect fuse.mo2linux in the mountinfo scan and always add it to
PRESSURE_VESSEL_FILESYSTEMS_RW regardless of its parent path classification.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

0 files changed, 0 insertions, 0 deletions