add handler change node update

Author: 黑布林

tests/api/test_server_router.py

@@ -38,6 +38,7 @@ def mock_init_server():
         "default_cube_config": Mock(),
         "mos_server": Mock(),
         "mem_scheduler": Mock(),
+        "feedback_server": Mock(),
         "naive_mem_cube": Mock(),
         "searcher": Mock(),
         "api_module": Mock(),