feat: 新增 account 和 plan 目录

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

account/admin/skills/system/cancel-scheduled-task/SKILL.md

@@ -0,0 +1,32 @@
+---
+name: cancel-scheduled-task
+description: PERMANENTLY DELETE scheduled task. When user says 'cancel/delete task' use this. When user says 'turn off notification' use update_scheduled_task with notify=false. When user says 'pause task' use update_scheduled_task with enabled=false.
+system: true
+handler: scheduled
+tool-name: cancel_scheduled_task
+category: Scheduled Tasks
+---
+
+# Cancel Scheduled Task
+
+【永久删除】定时任务。
+
+## Parameters
+
+| 参数 | 类型 | 必填 | 说明 |
+|-----|------|-----|------|
+| task_id | string | 是 | 任务 ID |
+
+## Important
+
+**操作区分**：
+- 用户说"取消/删除任务" → 用此工具
+- 用户说"关闭提醒" → 用 `update_scheduled_task` 设 notify=false
+- 用户说"暂停任务" → 用 `update_scheduled_task` 设 enabled=false
+
+**注意**：删除后无法恢复！
+
+## Related Skills
+
+- `list-scheduled-tasks`: 获取任务 ID
+- `update-scheduled-task`: 修改任务设置