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/storageclass.yaml

@@ -0,0 +1,12 @@
+apiVersion: storage.k8s.io/v1
+kind: StorageClass
+metadata:
+  name: longhorn-llm
+  labels:
+    app.kubernetes.io/name: ollama
+provisioner: driver.longhorn.io
+parameters:
+  numberOfReplicas: "1"
+  staleReplicaTimeout: "2880"
+reclaimPolicy: Retain
+allowVolumeExpansion: true