fix: small bugs in running scripts and set default log level

crates/forest/src/main.rs

@@ -1,3 +1,6 @@
+use tracing::level_filters::LevelFilter;
+use tracing_subscriber::EnvFilter;
+
 pub mod cli;
 pub mod model;
 pub mod plan_reconciler;
@@ -7,7 +10,14 @@ pub mod state;
 #[tokio::main]
 async fn main() -> anyhow::Result<()> {
     dotenvy::dotenv().ok();
-    tracing_subscriber::fmt::init();
+    tracing_subscriber::fmt()
+        .with_env_filter(
+            EnvFilter::builder()
+                .with_default_directive(LevelFilter::WARN.into())
+                .with_env_var("FOREST_LOG_LEVEL")
+                .from_env()?,
+        )
+        .init();
 
     cli::execute().await?;