refactor: better cli isolation, tokio-based cancellation

Author: tristan-f-r

Cargo.lock

@@ -24,7 +24,6 @@ itertools = { version = "0.13" }
 futures = "0.3.30"
 thiserror = "1.0"
 castaway = "0.2.3"
-tokio-util = "0.7.13"
 fxhash = "0.2.1"
 
 [package.metadata.docs.rs]