Add K3s dev deployment setup for single-node VPS

Mirrors the prod deploy-k3s/ setup but runs all services in-cluster
on a single node: PostgreSQL (replaces Neon), MinIO S3-compatible
storage (replaces B2), Redis, API, worker, and admin.

Includes fully automated setup scripts (00-init through 04-verify),
server hardening (SSH, fail2ban, ufw), Let's Encrypt TLS via Traefik,
network policies, RBAC, and security contexts matching prod.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

deploy-k3s-dev/manifests/postgres/pvc.yaml

@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: postgres-data
+  namespace: honeydue
+  labels:
+    app.kubernetes.io/name: postgres
+    app.kubernetes.io/part-of: honeydue
+spec:
+  accessModes:
+    - ReadWriteOnce
+  storageClassName: local-path
+  resources:
+    requests:
+      storage: 10Gi