Add TODO: CRITICAL for EmptyDir data volume

Mark the Postgres EmptyDir volume as critical to replace with a PVC.
All conversation history is lost if the pod is rescheduled or the
control plane goes down.

Author: lpiwowar

internal/controller/postgres_deployment.go

@@ -85,7 +85,8 @@ func buildPostgresPodTemplateSpec() corev1.PodTemplateSpec {
 		SubPath:   PostgresConfigKey,
 	})
 
-	// Data volume (EmptyDir for now — no persistence)
+	// TODO: CRITICAL - Replace EmptyDir with a PVC. With EmptyDir all conversation
+	// history is lost if the pod is rescheduled or the OCP control plane goes down.
 	volumes = append(volumes, corev1.Volume{
 		Name: PostgresDataVolume,
 		VolumeSource: corev1.VolumeSource{