DarkUnbug 1.0.4-beta.1 (client-only experimental Origins 1.10.0 guard)
Built from DarkUnbug 1.0.2 (preserved original fix). Does NOT include separate experimental Cosmetica patch.
The narrowly scoped Mixin redirects a single OriginLayers.getLayer call to a nullable wrapper.
Restores the existing null -> false condition behaviour. Does not fix missing server/client origin registry data.
Test before public release.
