make NFC read protocol error recoverable

src/bin/main.rs

@@ -166,8 +166,8 @@ async fn nfc_driver_task(
                         card_data.len()
                     );
                 }
-                Err(_) => {
-                    log::info!("No NFC card found");
+                Err(e) => {
+                    log::error!("NFC read failed: {e}");
                 }
             }
         }