feat: add harmonic-wordpress dev environment on Legion

- Add harmonic-wordpress namespace
- WordPress + MySQL deployment with PVCs and ExternalSecrets
- Ingress for dev.harmonic-framework.com via Traefik + cert-manager
- Argo CD Application watching k8s/harmonic-wordpress/
- Add public Gitea repo credential for git.neuralplatform.ai

servers/legion/k8s/harmonic-wordpress/pvc.yaml

@@ -0,0 +1,25 @@
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: wordpress-data
+  namespace: harmonic-wordpress
+spec:
+  storageClassName: local-path
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 10Gi
+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: mysql-data
+  namespace: harmonic-wordpress
+spec:
+  storageClassName: local-path
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 5Gi