- Rename omo-task to call-omo-agent with mandatory run_in_background parameter - Implement background mode using BackgroundManager (fire-and-forget abort) - Implement sync mode with existing subagent logic - Fix background_cancel: use fire-and-forget abort to prevent parent session interruption - Add call_omo_agent to tool disable list in explore/librarian agents - Add call_omo_agent to tool disable list in BackgroundManager 🤖 GENERATED WITH ASSISTANCE OF [OhMyOpenCode](https://github.com/code-yeongyu/oh-my-opencode)