chore: Update News API HPA minReplicas to 3

- Change HPA minReplicas from 2 to 3
- Maintain maxReplicas at 10
- Default 3 pods, auto-scale up to 10 based on CPU/Memory

🤖 Generated with [Claude Code](https://claude.ai/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

k8s/news-api/news-api-deployment.yaml

@@ -96,7 +96,7 @@ spec:
     apiVersion: apps/v1
     kind: Deployment
     name: news-api
-  minReplicas: 2
+  minReplicas: 3
   maxReplicas: 10
   metrics:
   - type: Resource

k8s/news-api/news-api-dockerhub.yaml

@@ -96,7 +96,7 @@ spec:
     apiVersion: apps/v1
     kind: Deployment
     name: news-api
-  minReplicas: 2
+  minReplicas: 3
   maxReplicas: 10
   metrics:
   - type: Resource