Optimize error handling

Error Handling Improvement: In the `enable_listener` method, use if let Err(e) for error handling instead of directly using expect. This can prevent the program from crashing when an error occurs. The expect method will cause the program to crash and print the specified error message when an error is encountered. This is useful during development and debugging because it helps quickly locate the problem. However, in a production environment, directly crashing may not be the best choice as it can lead to service interruptions.

node/router/src/routing.rs

@@ -41,7 +41,9 @@ pub trait Routing<N: Network>:
 
     // Start listening for inbound connections.
     async fn enable_listener(&self) {
-        self.tcp().enable_listener().await.expect("Failed to enable the TCP listener");
+        if let Err(e) = self.tcp().enable_listener().await {
+            eprintln!("Failed to enable the TCP listener: {:?}", e);
+        }
     }
 
     /// Initialize a new instance of the heartbeat.