Add eWeLink CUBE OS chart

Bridges eWeLink Wi-Fi and Zigbee devices into Matter (HomeKit,
Google Home, Alexa, Home Assistant). Uses a Multus macvlan interface
instead of hostNetwork, since CUBE OS hardcodes host port 80/1883
which would otherwise collide with Traefik on the same node.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BU7b2w8XZPbD7uXRfjKwcm

cubeos/templates/ingress.yaml

@@ -0,0 +1,27 @@
+{{- range $name, $config := .Values.ingresses }}
+---
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: {{ $.Release.Name }}-{{ $name }}
+  {{- with $config.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  rules:
+    - host: {{ $config.host }}
+      http:
+        paths:
+          - path: /
+            pathType: Prefix
+            backend:
+              service:
+                name: {{ $.Release.Name }}
+                port:
+                  number: {{ $.Values.service.port }}
+  {{- with $config.tls }}
+  tls:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+{{- end }}