Description

Cron jobs with delivery.mode: "none" still deliver output to Telegram instead of staying silent.

Steps to reproduce

1. Create a cron with delivery.mode: "none"
2. Run the cron
3. Output appears in Telegram despite mode being "none"

Expected behavior

When delivery.mode: "none", cron output should NOT appear in Telegram.

Actual behavior

Cron output appears in Telegram regardless of mode setting.

Environment

• OpenClaw version: latest
• Channel: Telegram
• Example cron: Linear Multi-Task Picker

Workaround

Disable affected crons, but this loses automation value.