Add child relation deletion by parent query: Introduced a new SQL query to delete child relations where the character is either a father or mother. Updated relevant workers to execute this query before deleting child relations, ensuring proper cleanup of relationships during character deletion.

YpDaemon/src/worker/character_creation.rs

@@ -20,6 +20,7 @@ use crate::worker::sql::{
     QUERY_DELETE_DIRECTOR,
     QUERY_DELETE_RELATIONSHIP,
     QUERY_DELETE_CHILD_RELATION,
+    QUERY_DELETE_CHILD_RELATION_BY_PARENT,
     QUERY_INSERT_NOTIFICATION,
     QUERY_MARK_CHARACTER_DECEASED,
 };
@@ -426,7 +427,9 @@ impl CharacterCreationWorker {
             }
         }
 
-        // 3) Child-Relations löschen und Eltern benachrichtigen
+        // 3) Child-Relations löschen (als Elter zuerst, dann als Kind) und Eltern benachrichtigen
+        conn.prepare("delete_child_relation_by_parent", QUERY_DELETE_CHILD_RELATION_BY_PARENT)?;
+        conn.execute("delete_child_relation_by_parent", &[&character_id])?;
         conn.prepare("delete_child_relation", QUERY_DELETE_CHILD_RELATION)?;
         let child_result = conn.execute("delete_child_relation", &[&character_id])?;
         for row in child_result {