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/produce.rs

@@ -13,8 +13,8 @@ use crate::worker::sql::{
     QUERY_DELETE_PRODUCTION,
     QUERY_INSERT_INVENTORY,
     QUERY_INSERT_UPDATE_PRODUCTION_LOG,
-    QUERY_ADD_OVERPRODUCTION_NOTIFICATION,
 };
+use crate::worker::insert_notification_conn;
 
 /// Abbildet eine abgeschlossene Produktion aus der Datenbank.
 #[derive(Debug, Clone)]
@@ -402,22 +402,13 @@ impl ProduceWorker {
             .get()
             .map_err(|e| crate::db::DbError::new(format!("DB-Verbindung fehlgeschlagen: {e}")))?;
 
-        conn.prepare(
-            "add_overproduction_notification",
-            QUERY_ADD_OVERPRODUCTION_NOTIFICATION,
-        )?;
-
         // Zusätzlich zur Menge die Branch-ID in der Payload mitschicken, damit
         // das Frontend die Überproduktion einem konkreten Branch zuordnen kann.
         let notification = format!(
             r#"{{"tr":"production.overproduction","value":{},"branch_id":{}}}"#,
             remaining_quantity, branch_id
         );
-
-        conn.execute(
-            "add_overproduction_notification",
-            &[&user_id, &notification],
-        )?;
+        insert_notification_conn(&mut conn, user_id, &notification, None)?;
 
         Ok(())
     }