[refactor] removed unused api.rs module to streamline code structure

backend-rust/crates/app/src/main.rs

@@ -0,0 +1,19 @@
+use tracing_subscriber::{layer::SubscriberExt, util::SubscriberInitExt};
+
+#[tokio::main]
+async fn main() -> anyhow::Result<()> {
+    // Basic tracing setup (adjust as needed)
+    tracing_subscriber::registry()
+        .with(
+            tracing_subscriber::EnvFilter::try_from_default_env()
+                .unwrap_or_else(|_| "info".into()),
+        )
+        .with(tracing_subscriber::fmt::layer())
+        .init();
+
+    // TODO: invoke your API server bootstrap here.
+    // For example, if you have a function like `owly-news-api::run_server().await`
+    // call it here. This is just a placeholder:
+    tracing::info!("owly-news app starting...");
+    Ok(())
+}