k8s/services: add ingress networking portainer llm and project guides

- Nginx ingress + TLS termination (homelab-ca)
- Portainer container UI
- CoreDNS internal DNS rewrites
- DuckDNS DDNS updater
- Ollama LLM inference
- 8 project-usage guides (team reference)

k8s/llm/charts/ollama/templates/service.yaml

@@ -0,0 +1,16 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: ollama
+  namespace: llm
+  labels:
+    app.kubernetes.io/name: ollama
+spec:
+  type: {{ .Values.service.type }}
+  ports:
+    - port: {{ .Values.service.port }}
+      targetPort: http
+      protocol: TCP
+      name: http
+  selector:
+    app.kubernetes.io/name: ollama