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/storage/seaweedfs-config.yaml

@@ -0,0 +1,24 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: seaweedfs-filer-config
+  namespace: storage
+data:
+  filer.toml: |
+    # SeaweedFS filer configuration
+    # S3 API enabled on port 8333
+
+    [leveldb2]
+    enabled = true
+    dir = "/data/filer"
+
+    [s3]
+    enabled        = true
+    port           = 8333
+    # Credentials are loaded from the seaweedfs-s3-credentials Secret
+    # and passed as env vars (S3_ACCESS_KEY, S3_SECRET_KEY) to the filer.
+
+  master.toml: |
+    [master.maintenance]
+    sleep_minutes          = 17
+    garbage_threshold      = 0.3