feat(helm): scheduler deployment (single replica, schedule:work)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

helm/ezscale-website/templates/deployment-scheduler.yaml

@@ -0,0 +1,38 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "ezscale-website.fullname" . }}-scheduler
+  labels:
+    {{- include "ezscale-website.labels" . | nindent 4 }}
+    app.kubernetes.io/component: scheduler
+spec:
+  # Single replica only — running two schedule:work instances doubles tasks.
+  replicas: 1
+  strategy:
+    type: Recreate
+  selector:
+    matchLabels:
+      {{- include "ezscale-website.selectorLabels" . | nindent 6 }}
+      app.kubernetes.io/component: scheduler
+  template:
+    metadata:
+      labels:
+        {{- include "ezscale-website.selectorLabels" . | nindent 8 }}
+        app.kubernetes.io/component: scheduler
+      annotations:
+        checksum/config: {{ include (print $.Template.BasePath "/configmap.yaml") . | sha256sum }}
+    spec:
+      {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      containers:
+        - name: scheduler
+          image: {{ include "ezscale-website.image" (dict "ctx" . "role" "scheduler") }}
+          envFrom:
+            - configMapRef:
+                name: {{ include "ezscale-website.fullname" . }}-env
+            - secretRef:
+                name: {{ include "ezscale-website.secretName" . }}
+          resources:
+            {{- toYaml .Values.scheduler.resources | nindent 12 }}