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/sql.rs

@@ -53,9 +53,17 @@ ON CONFLICT (region_id)
 DO UPDATE SET weather_type_id = EXCLUDED.weather_type_id;
 "#;
 
-pub const QUERY_INSERT_NOTIFICATION: &str = r#"
-INSERT INTO falukant_log.notification (user_id, tr, shown, created_at, updated_at)
-VALUES ($1, $2, FALSE, NOW(), NOW());
+/// Vollständige Notification-Insert-Query (inkl. `character_id`), damit Trigger/Schemaänderungen
+/// nicht an fehlenden Spalten scheitern.
+pub const QUERY_INSERT_NOTIFICATION_FULL: &str = r#"
+    INSERT INTO falukant_log.notification (
+        user_id,
+        tr,
+        character_id,
+        shown,
+        created_at,
+        updated_at
+    ) VALUES ($1, $2, $3, FALSE, NOW(), NOW());
 "#;
 
 // Product pricing
@@ -295,6 +303,21 @@ pub const QUERY_UPDATE_VEHICLE_AFTER_TRANSPORT: &str = r#"
 UPDATE falukant_data.vehicle SET region_id = $2, condition = GREATEST(0, condition - $3::int), available_from = NOW(), updated_at = NOW() WHERE id = $1;
 "#;
 
+// Vehicle maintenance (TransportWorker)
+pub const QUERY_GET_BROKEN_VEHICLES: &str = r#"
+SELECT id AS vehicle_id, falukant_user_id AS user_id
+  FROM falukant_data.vehicle
+ WHERE condition <= 0;
+"#;
+
+pub const QUERY_DELETE_TRANSPORTS_BY_VEHICLE: &str = r#"
+DELETE FROM falukant_data.transport WHERE vehicle_id = $1;
+"#;
+
+pub const QUERY_DELETE_VEHICLE: &str = r#"
+DELETE FROM falukant_data.vehicle WHERE id = $1;
+"#;
+
 pub const QUERY_DELETE_TRANSPORT: &str = r#"
 DELETE FROM falukant_data.transport WHERE id = $1;
 "#;
@@ -1487,17 +1510,6 @@ pub const QUERY_INSERT_UPDATE_PRODUCTION_LOG: &str = r#"
     SET quantity = falukant_log.production.quantity + EXCLUDED.quantity;
 "#;
 
-pub const QUERY_ADD_OVERPRODUCTION_NOTIFICATION: &str = r#"
-    INSERT INTO falukant_log.notification (
-        user_id,
-        tr,
-        character_id,
-        shown,
-        created_at,
-        updated_at
-    ) VALUES ($1, $2, NULL, FALSE, NOW(), NOW());
-"#;
-
 // Aliases for personal variants (keeps original prepared statement names used in events.worker)
 pub const QUERY_REDUCE_INVENTORY_PERSONAL: &str = QUERY_REDUCE_INVENTORY;
 pub const QUERY_DELETE_INVENTORY_PERSONAL: &str = QUERY_DELETE_INVENTORY;