Add Kubernetes deployment configurations

- Add deployment.yaml with imagePullSecrets and env configuration
- Add service.yaml with ClusterIP configuration
- Configure LLM API key from Secret and other env from ConfigMap
- Ensures proper image pull authentication from private registry

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

k8s/service.yaml

@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: lpt-ai
+  namespace: lpt-dev
+  labels:
+    app: lpt-ai
+spec:
+  type: ClusterIP
+  selector:
+    app: lpt-ai
+  ports:
+    - port: 5199
+      targetPort: 5199
+      protocol: TCP