feat: configure graceful shutdown window

internal/observability/runtime.go

@@ -17,17 +17,19 @@ type RuntimeConfig struct {
 	ScheduleTickInterval time.Duration
 	RecoveryTickInterval time.Duration
 	BatchLimit           int
+	ShutdownTimeout      time.Duration
 }
 
 // RecordRuntimeConfig records the effective bounded controller settings.
 func (r *Registry) RecordRuntimeConfig(config RuntimeConfig) {
-	if r == nil || config.WorkflowTickInterval <= 0 || config.ScheduleTickInterval <= 0 || config.RecoveryTickInterval <= 0 || config.BatchLimit <= 0 {
+	if r == nil || config.WorkflowTickInterval <= 0 || config.ScheduleTickInterval <= 0 || config.RecoveryTickInterval <= 0 || config.BatchLimit <= 0 || config.ShutdownTimeout <= 0 {
 		return
 	}
 	r.SetGauge("orbit_runtime_tick_interval_seconds", config.WorkflowTickInterval.Seconds(), Labels{"component": "workflow"})
 	r.SetGauge("orbit_runtime_tick_interval_seconds", config.ScheduleTickInterval.Seconds(), Labels{"component": "schedule"})
 	r.SetGauge("orbit_runtime_tick_interval_seconds", config.RecoveryTickInterval.Seconds(), Labels{"component": "execution_recovery"})
 	r.SetGauge("orbit_runtime_batch_limit", float64(config.BatchLimit), nil)
+	r.SetGauge("orbit_shutdown_timeout_seconds", config.ShutdownTimeout.Seconds(), nil)
 }
 
 // initializeProcess is called once by the registry constructor.