chore: update .gitignore and enhance docstrings across multiple files

- Added *.pyc and *.pyo to .gitignore to prevent compiled Python files from being tracked.
- Improved docstrings in various modules, providing clearer descriptions of functions, parameters, and return values to enhance code readability and maintainability.

backend/app/plugin/module_task/cronjob/node/controller.py

@@ -33,6 +33,12 @@ async def get_node_options_controller(
 ) -> JSONResponse:
     """
     获取数据库中的定时任务节点定义（task_node），与编排节点类型无关。
+
+    参数:
+    - auth (AuthSchema): 认证信息。
+
+    返回:
+    - JSONResponse: 成功响应，data 为选项列表。
     """
     result = await NodeService.get_node_options_service(auth=auth)
     log.info("获取定时任务节点选项成功")