Module activating 

Transitions from Activating.

• LocalActivationStarted / RemoteActivationStarted — visibility, no state change; stamps activation_started_at.
• LocalActivationCompleted / RemoteActivationCompleted — drives Activating → Soaking, sets current_closure, resets probe cache.
• LocalActivationFailed / RemoteActivationFailed — drives Activating → Failed; agent reads onHealthFailure from policy and (if rollback-and-halt) fires the rollback in the same handler.

Functions

handle 🔒