feat: convert Deployment to Rollout CRD with canary strategy

- Replace deployment.yaml with rollout.yaml
- Add canary-service.yaml for traffic splitting
- Add analysistemplate.yaml for Prometheus health checks
- Update HTTPRoute with dual backends (stable + canary)
- Update overlays with Rollout patches
- Add Rollout transformer configuration for Kustomize

apps/myapp/base/kustomization.yaml

@@ -2,6 +2,11 @@ apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 
 resources:
-- deployment.yaml
+- rollout.yaml
 - service.yaml
+- canary-service.yaml
 - httproute.yaml
+- analysistemplate.yaml
+
+configurations:
+- https://argoproj.github.io/argo-rollouts/features/kustomize/rollout-transform-kustomize-v5.yaml