feat(monitor): 添加任务管理模块

- 在 README 中添加了 Celery 任务管理的说明
- 在系统菜单中添加了任务管理相关菜单项
- 添加了任务管理的路由和权限
- 引入了 croniter 库用于处理 cron 表达式

backend/app/scripts/data/system_menu.json

@@ -950,5 +950,73 @@
     "hidden": false,
     "redirect": null,
     "description": "初始化数据"
+  },
+  {
+    "id": 57,
+    "name": "任务管理",
+    "type": 2,
+    "icon": null,
+    "order": 4,
+    "permission": "monitor:task:query",
+    "route_name": "Task",
+    "route_path": "/monitor/task",
+    "component_path": "monitor/task/index",
+    "parent_id": 36,
+    "available": true,
+    "cache": true,
+    "hidden": false,
+    "redirect": null,
+    "description": "初始化数据"
+  },
+  {
+    "id": 58,
+    "name": "任务创建",
+    "type": 3,
+    "icon": null,
+    "order": 1,
+    "permission": "monitor:task:create",
+    "route_name": null,
+    "route_path": null,
+    "component_path": null,
+    "parent_id": 57,
+    "available": true,
+    "cache": true,
+    "hidden": false,
+    "redirect": null,
+    "description": "初始化数据"
+  },
+  {
+    "id": 59,
+    "name": "任务取消-重试",
+    "type": 3,
+    "icon": null,
+    "order": 2,
+    "permission": "monitor:task:update",
+    "route_name": null,
+    "route_path": null,
+    "component_path": null,
+    "parent_id": 57,
+    "available": true,
+    "cache": true,
+    "hidden": false,
+    "redirect": null,
+    "description": "初始化数据"
+  },
+  {
+    "id": 60,
+    "name": "任务删除",
+    "type": 3,
+    "icon": null,
+    "order": 3,
+    "permission": "monitor:task:delete",
+    "route_name": null,
+    "route_path": null,
+    "component_path": null,
+    "parent_id": 57,
+    "available": true,
+    "cache": true,
+    "hidden": false,
+    "redirect": null,
+    "description": "初始化数据"
   }
 ]

backend/app/scripts/data/system_role_menus.json

@@ -223,6 +223,22 @@
     "role_id": 1,
     "menu_id": 56
   },
+  {
+    "role_id": 1,
+    "menu_id": 57
+  },
+  {
+    "role_id": 1,
+    "menu_id": 58
+  },
+  {
+    "role_id": 1,
+    "menu_id": 59
+  },
+  {
+    "role_id": 1,
+    "menu_id": 60
+  },
   {
     "role_id": 2,
     "menu_id": 1