Graceful shutdown

InitializeApp() observes SIGINT, SIGTERM, and SIGHUP. SDK components register cleanup routines as they are initialized.

Application resources can implement:

type Observer interface {
	Close()
}

Register them with observer.Attach(resource).

Use observer.GetWaitGroup() for background goroutines and observer.WaitRunningTimeout() to wait up to WAIT_GROUP_TIMEOUT_SECONDS (90 seconds by default).

warning

SIGKILL cannot be intercepted. Keep consumers and operations idempotent.