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/minio/create-bucket-job.yaml

@@ -0,0 +1,81 @@
+# One-shot job to create the default bucket in MinIO.
+# Applied by 03-deploy.sh after MinIO is running.
+# Re-running is safe — mc mb --ignore-existing is idempotent.
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: minio-create-bucket
+  namespace: honeydue
+  labels:
+    app.kubernetes.io/name: minio
+    app.kubernetes.io/part-of: honeydue
+spec:
+  ttlSecondsAfterFinished: 300
+  backoffLimit: 5
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: minio-init
+        app.kubernetes.io/part-of: honeydue
+    spec:
+      securityContext:
+        runAsNonRoot: true
+        runAsUser: 1000
+        runAsGroup: 1000
+        seccompProfile:
+          type: RuntimeDefault
+      containers:
+        - name: mc
+          image: minio/mc:latest
+          command:
+            - sh
+            - -c
+            - |
+              echo "Waiting for MinIO to be ready..."
+              until mc alias set honeydue http://minio.honeydue.svc.cluster.local:9000 "$MINIO_ROOT_USER" "$MINIO_ROOT_PASSWORD" 2>/dev/null; do
+                sleep 2
+              done
+              echo "Creating bucket: $BUCKET_NAME"
+              mc mb --ignore-existing "honeydue/$BUCKET_NAME"
+              echo "Bucket ready."
+          securityContext:
+            allowPrivilegeEscalation: false
+            readOnlyRootFilesystem: true
+            capabilities:
+              drop: ["ALL"]
+          env:
+            - name: MINIO_ROOT_USER
+              valueFrom:
+                configMapKeyRef:
+                  name: honeydue-config
+                  key: MINIO_ROOT_USER
+            - name: MINIO_ROOT_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: honeydue-secrets
+                  key: MINIO_ROOT_PASSWORD
+            - name: BUCKET_NAME
+              valueFrom:
+                configMapKeyRef:
+                  name: honeydue-config
+                  key: B2_BUCKET_NAME
+          volumeMounts:
+            - name: tmp
+              mountPath: /tmp
+            - name: mc-config
+              mountPath: /.mc
+          resources:
+            requests:
+              cpu: 50m
+              memory: 32Mi
+            limits:
+              cpu: 200m
+              memory: 64Mi
+      volumes:
+        - name: tmp
+          emptyDir:
+            sizeLimit: 16Mi
+        - name: mc-config
+          emptyDir:
+            sizeLimit: 16Mi
+      restartPolicy: OnFailure