New tool that takes multiple task IDs and blocks until ANY one completes (Promise.race pattern). Returns the completed task's result plus a progress summary with remaining IDs. Enables Athena to show incremental council progress without polling.
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
ismeth