Module manager 

Sub-agent lifecycle management: spawn, cancel, collect, and resume.

Structs

SpawnContext

Parent-derived state propagated to a spawned sub-agent at spawn time.

SubAgentHandle

Handle to a spawned sub-agent task, owned by SubAgentManager.

SubAgentManager

Manages sub-agent lifecycle: definitions, spawning, cancellation, and result collection.

SubAgentStatus

Live status snapshot of a running sub-agent.