Two breaks that only appeared on a full `cargo test --workspace`. `slint::android` exists only when compiling for Android, so darkroom-android failed to compile on the host even though it is a workspace member. The entry point is now gated on the target rather than on a feature. The timeline forwarded `scrub` where the Timeline component declares `scrub-to`, which the Slint compiler rejects. Assisted-by: LLM