feat(minecraft): deploy journey-into-imagination PaperMC server

- PaperMC 26.1.2 via itzg/minecraft-server:2026.7.0
- Namespace: minecraft, Service: journey-into-imagination
- TCP port 10182 (non-standard) via ingress-nginx tcp forwarding
- Pure Storage CSI PVC (pure-block, 50Gi) for world data
- World seed hardcoded: -5177989977648707969
- RCON password via ExternalSecret + 1Password Connect
- SleepMost v5.6.2 plugin for single-player sleep
- Whitelist off at launch, toggle-ready
- ExternalDNS annotations for internal Technitium record
- Manual steps: UniFi port forward WAN:10182→10.1.71.80:10182,
  Cloudflare A record + SRV for journey-into-imagination.mk-labs.cloud

cluster/applications/minecraft/namespace.yaml

@@ -0,0 +1,8 @@
+---
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: minecraft
+  labels:
+    app.kubernetes.io/name: minecraft
+    app.kubernetes.io/managed-by: argocd