v0.1.13: Strategy Recreate + preStop + liveness fix (ERR-SQS-06 root cause)

- ensureDeployment: Strategy Recreate (not RollingUpdate) — prevents H2 file lock
  when two pods mount same PVC simultaneously during rollout restart
- preStop: sleep 3 — graceful H2 shutdown before SIGTERM
- livenessProbe timeoutSeconds: 3 — prevents false positive on GC pause
- terminationGracePeriodSeconds: 15
- doc: thinking log, ERR-SQS-06, progress.md, architecture SVG schema

sqs-operator/internal/controller/queueservice_controller.go

@@ -533,6 +533,12 @@ func (r *QueueServiceReconciler) ensureDeployment(ctx context.Context, qs *sqsv1
 					"sqs.kube5s.ru/tenant": qs.Spec.TenantID,
 				},
 			},
+			// Recreate: старый pod убивается ДО создания нового.
+			// H2 MVStore держит FileChannel.lock() на /data/elasticmq.mv.db —
+			// при RollingUpdate два pod лезут в один PVC одновременно = ERR-SQS-06.
+			Strategy: appsv1.DeploymentStrategy{
+				Type: appsv1.RecreateDeploymentStrategyType,
+			},
 			Template: corev1.PodTemplateSpec{
 				ObjectMeta: metav1.ObjectMeta{
 					Labels: sqsLabels(qs.Spec.TenantID),
@@ -543,6 +549,8 @@ func (r *QueueServiceReconciler) ensureDeployment(ctx context.Context, qs *sqsv1
 					SecurityContext: &corev1.PodSecurityContext{
 						FSGroup: func() *int64 { v := int64(999); return &v }(),
 					},
+					// 15 сек — достаточно для graceful shutdown JVM + H2 fsync.
+					TerminationGracePeriodSeconds: func() *int64 { v := int64(15); return &v }(),
 					Containers: func() []corev1.Container {
 						ctrs := []corev1.Container{
 							{
@@ -605,8 +613,17 @@ func (r *QueueServiceReconciler) ensureDeployment(ctx context.Context, qs *sqsv1
 									},
 									InitialDelaySeconds: 5,
 									PeriodSeconds:       10,
+									TimeoutSeconds:      3,
 									FailureThreshold:    5,
 								},
+								// preStop: 3 сек на graceful shutdown H2 перед SIGTERM.
+								Lifecycle: &corev1.Lifecycle{
+									PreStop: &corev1.LifecycleHandler{
+										Exec: &corev1.ExecAction{
+											Command: []string{"sh", "-c", "sleep 3"},
+										},
+									},
+								},
 							},
 						}
 						if qs.Spec.EnableUI {