Fix non-Steam game launch: skip steam bridge, fix process tracking

Set UMU_ID=fluorine when Steam DRM is disabled so Proton-GE launches
the game directly instead of through steam.exe (which asserts for
non-Steam executables like GOG games).

Fix VFS premature shutdown by tracking the game PID across process
reparenting.  When the proton root process exits, wine/game processes
get reparented to PID 1 and disappear from the descendant tree.  Now
we remember the tracked game PID and poll it directly, keeping VFS
mounted until the actual game exits.

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

0 files changed, 0 insertions, 0 deletions