Fix crash when bailing out of first-run setup before the game inits (#707)

InitModsSystem() runs before the game world is set up. Its bail-out paths (no
O2R + user declines generation, missing mods.toml, cyclic/outdated mod deps,
and GenAssetFile's no-ROM / unsupported-ROM cases) call exit(), which runs the
global `static World sWorldInstance` destructor -> World::CleanWorld() ->
dereferences Sky::Instance and other singletons that are still null this early,
segfaulting. The most visible case: declining the first-run "Generate one now?"
prompt pops a crash report instead of quitting cleanly.

Use _Exit() on these pre-initialization bail-outs so no static destructors run.

Co-authored-by: quarrel07 <paeans-toggle-2e@icloud.com>
Co-authored-by: coco875 <59367621+coco875@users.noreply.github.com>

0 files changed, 0 insertions, 0 deletions