added update_rule for incremental change

src/economic/scraper.rs

@@ -1,5 +1,6 @@
 // src/economic/scraper.rs
 use super::types::{EconomicEvent};
+use event_backtest_engine::logger;
 use fantoccini::Client;
 use tokio::time::{sleep, Duration};
 
@@ -49,6 +50,6 @@ pub async fn extract_events(client: &Client) -> anyhow::Result<Vec<EconomicEvent
             });
         }
     }
-    println!("Extracted {} high-impact events", events.len());
+    logger::log_info(&format!("Extracted {} high-impact events", events.len())).await;
     Ok(events)
 }