refactor: entity not found exceptions handler

repositories/status.py

@@ -7,6 +7,7 @@ from schemas.status import UpdateStatusSchema, CreateStatusSchema
 
 class StatusRepository(RepCrudMixin[Status, CreateStatusSchema, UpdateStatusSchema]):
     entity_class = Status
+    entity_not_found_msg = "Статус не найден"
 
     def _process_get_all_stmt_with_args(self, stmt: Select, *args) -> Select:
         board_id = args[0]