chore: initial infrastructure scaffold

Kustomize base + overlays for the full Sunbeam k3s stack:
- base/mesh      — Linkerd edge (crds + control-plane + viz)
- base/ingress   — custom Pingora edge proxy
- base/ory       — Kratos 0.60.1 + Hydra 0.60.1 + login-ui
- base/data      — CloudNativePG 0.27.1, Valkey 8, OpenSearch 2
- base/storage   — SeaweedFS master + volume + filer (S3 on :8333)
- base/lasuite   — Hive sync daemon + La Suite app placeholders
- base/media     — LiveKit livekit-server 1.9.0
- base/devtools  — Gitea 12.5.0 (external PG + Valkey)
overlays/local   — sslip.io domain, mkcert TLS, Lima hostPort
overlays/production — stub (TODOs for sunbeam.pt values)
scripts/         — local-up/down/certs/urls helpers
justfile         — up / down / certs / urls targets

base/data/opensearch-deployment.yaml

@@ -0,0 +1,44 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: opensearch
+  namespace: data
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: opensearch
+  template:
+    metadata:
+      labels:
+        app: opensearch
+    spec:
+      initContainers:
+        - name: sysctl
+          image: busybox
+          command: ["sysctl", "-w", "vm.max_map_count=262144"]
+          securityContext:
+            privileged: true
+      containers:
+        - name: opensearch
+          image: opensearchproject/opensearch:2
+          ports:
+            - name: http
+              containerPort: 9200
+              protocol: TCP
+            - name: transport
+              containerPort: 9300
+              protocol: TCP
+          env:
+            - name: discovery.type
+              value: single-node
+            - name: OPENSEARCH_JAVA_OPTS
+              value: "-Xms256m -Xmx512m"
+            - name: DISABLE_SECURITY_PLUGIN
+              value: "true"
+          resources:
+            limits:
+              memory: 512Mi
+            requests:
+              memory: 256Mi
+              cpu: 100m