feat(helm): add Ingress template with API, docs, metrics, and frontend routes

Routes /api, /docs, /metrics to API service and / to frontend,
with optional TLS and annotation support.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

infrastructure/helm/templates/ingress.yaml

@@ -0,0 +1,54 @@
+{{- if .Values.ingress.enabled }}
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: {{ include "tod.fullname" . }}
+  labels:
+    {{- include "tod.labels" . | nindent 4 }}
+  {{- with .Values.ingress.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  ingressClassName: {{ .Values.ingress.className }}
+  {{- if .Values.ingress.tls.enabled }}
+  tls:
+    - hosts:
+        - {{ .Values.ingress.host }}
+      {{- if .Values.ingress.tls.secretName }}
+      secretName: {{ .Values.ingress.tls.secretName }}
+      {{- end }}
+  {{- end }}
+  rules:
+    - host: {{ .Values.ingress.host }}
+      http:
+        paths:
+          - path: /api
+            pathType: Prefix
+            backend:
+              service:
+                name: {{ include "tod.fullname" . }}-api
+                port:
+                  number: 8000
+          - path: /docs
+            pathType: Prefix
+            backend:
+              service:
+                name: {{ include "tod.fullname" . }}-api
+                port:
+                  number: 8000
+          - path: /metrics
+            pathType: Exact
+            backend:
+              service:
+                name: {{ include "tod.fullname" . }}-api
+                port:
+                  number: 8000
+          - path: /
+            pathType: Prefix
+            backend:
+              service:
+                name: {{ include "tod.fullname" . }}-frontend
+                port:
+                  number: 80
+{{- end }}