continuable 2

The child-scoped report tool for continuable in-process subagents on DeepSeek Harness: installs `report` plus its usage guidance into every continuable child scope, so findings reach the parent before the child finishes.

Active wait for background continuable subagents in DeepSeek Harness: registers a wait_subagent tool that blocks until the named subagent settles, then returns its stop reason and closing message — closing the gap between run_in_background fire-and-return