Refactor notification handling in Workers: Centralize notification insertion and frontend updates by replacing direct SQL queries with dedicated functions. This improves code maintainability and reduces redundancy across character creation, events, and transport processing.

src/worker/events.rs

@@ -13,7 +13,6 @@ use crate::worker::sql::{
     QUERY_GET_RANDOM_INFANT,
     QUERY_GET_RANDOM_CITY,
     QUERY_GET_AFFECTED_USERS,
-    QUERY_INSERT_NOTIFICATION,
     QUERY_GET_MONEY,
     QUERY_UPDATE_MONEY,
     QUERY_GET_REGION_STOCKS,
@@ -53,6 +52,7 @@ use crate::worker::sql::{
     QUERY_GET_CREDIT_DEBT,
     QUERY_COUNT_CHILDREN,
 };
+use crate::worker::{insert_notification, publish_update_status};
 
 /// Typisierung von Ereignissen
 #[derive(Debug, Clone, Copy, PartialEq)]
@@ -1617,17 +1617,11 @@ impl EventsWorker {
         user_id: i32,
         event_type: &str,
     ) -> Result<(), DbError> {
-        let mut conn = pool
-            .get()
-            .map_err(|e| DbError::new(format!("DB-Verbindung fehlgeschlagen: {e}")))?;
+        // DB-Notification (zentralisiert). Historisch wird hier als `tr` der event_type-String gespeichert.
+        insert_notification(pool, user_id, event_type, None)?;
 
-    conn.prepare("insert_notification", QUERY_INSERT_NOTIFICATION)?;
-        conn.execute("insert_notification", &[&user_id, &event_type])?;
-
-        // falukantUpdateStatus
-        let update_message =
-            format!(r#"{{"event":"falukantUpdateStatus","user_id":{}}}"#, user_id);
-        broker.publish(update_message);
+        // Frontend-Update (zentralisiert)
+        publish_update_status(broker, user_id);
 
         // ursprüngliche Benachrichtigung
         let message =