Create Clawdbot cron jobs from natural language with strict run-guard rules. Use when: users ask to schedule reminders or messages (recurring or one-shot), especially via Telegram, or when they use /at or /every. Examples: 'Create a daily reminder at 8am', 'Remind me in 20 minutes', 'Send me a Telegram message at 3pm', '/every 2h'.

通过自然语言创建Clawdbot定时任务，并应用严格的运行防护规则。适用场景：用户请求安排提醒或消息（周期性或单次），尤其是通过Telegram发出，或使用/at或/every命令时。示例：'每天早上8点设置提醒'，'20分钟后提醒我'，'下午3点发我一条Telegram消息'，'/every 2h'