fix: [Application] Tool node execution error #4790 (#4792)

Author: shaohuzhang1

apps/application/flow/step_node/tool_lib_node/impl/base_tool_lib_node.py

@@ -252,7 +252,7 @@ def tool_exec_record(self, tool_lib, all_params):
         start_time = time.time()
         try:
             # 过滤掉 tool_init_params 中的参数
-            tool_init_params = json.loads(rsa_long_decrypt(tool_lib.init_params))
+            tool_init_params = json.loads(rsa_long_decrypt(tool_lib.init_params)) if tool_lib.init_params else {}
             if tool_init_params:
                 filtered_args = {
                     k: v for k, v in all_params.items()