introduce rust

src/cmd/init_input.rs

@@ -0,0 +1,11 @@
+use crate::input;
+
+pub async fn run() {
+    tokio::spawn(async {
+        if let Err(e) = input::forward_requests_from_socket().await {
+            eprintln!("failed to forwards requests from socket: {e}");
+            std::process::exit(1);
+        }
+    });
+    input::answer_requests_from_stdin().await;
+}