Improved error handling

src/engine/engine/strategy.rs

@@ -33,7 +33,13 @@ impl StrategyEngine {
         let (strategy, strategy_manifest) = get_manifest(
             &strategy,
             &strategy.join("strategy.bash"),
-            &fs::read(strategy.join("strategy.toml")).await?,
+            &match fs::read(strategy.join("strategy.toml")).await {
+                Err(e) if e.kind() == tokio::io::ErrorKind::NotFound => Err(tokio::io::Error::new(
+                    tokio::io::ErrorKind::NotFound,
+                    format!("Unable to find strategy.toml for {strategy:?}: {}", e),
+                )),
+                v => v,
+            }?,
         )?;
 
         Ok(Self {