Usage cleanup and client initial signals

src/engine/store/strategy.rs

@@ -1,9 +1,6 @@
-use std::{path::PathBuf, process::Stdio};
+use pulse_sdk::{map_postcard_err, prelude::*};
 
-use pulse_sdk::{
-    map_postcard_err,
-    strategy::{StrategyEngineMessage, StrategyManifest, StrategyMessage},
-};
+use std::{path::PathBuf, process::Stdio};
 use tokio::{
     io::{AsyncReadExt, AsyncWriteExt},
     process::{Child, ChildStdout, Command},