Made R701 shareable via an internal Mutex, allowing get_name to be called while streaming records

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

README.md

@@ -38,18 +38,13 @@ If you want to read about this reverse engineering attempt, check out
 
    #[tokio::main]
    async fn main() {
-       let mut r701 = R701::connect("127.0.0.1:5005").await.unwrap();
-
-       let records = r701
-           .into_record_iter()
-           .await
-           .unwrap()
-           .collect::<Vec<_>>()
-           .await;
+       let r701 = R701::connect("127.0.0.1:5005").await.unwrap();
+       let mut record_stream = r701.into_record_iter().await.unwrap();
+       let mut id = 0;
 
        println!("No\tMchn\tEnNo\t\tName\t\tMode\tIOMd\tDateTime\t");
-       for (id, record) in records.iter().rev().enumerate() {
-           let record = record.as_ref().unwrap();
+       while let Some(record) = record_stream.next().await {
+           let record = record.unwrap();
            let name = r701
                .get_name(record.employee_id)
                .await
@@ -66,6 +61,8 @@ If you want to read about this reverse engineering attempt, check out
                record.clock as u8,
                record.datetime.format("%Y/%m/%d  %H:%M:%S"),
            );
+
+           id += 1;
        }
    }
    ```