Add Helm chart for deploying web and API components

- Created complete Helm chart with deployments, services, and ingress
- Added support for both web frontend and API backend components
- Included autoscaling (HPA) for both components
- Added pod disruption budgets for high availability
- Configured security contexts and best practices
- Created helper templates and configuration management
- Added production and development value files
- Included comprehensive README with installation instructions

helm/api7ee/templates/configmap.yaml

@@ -0,0 +1,10 @@
+{{- if .Values.configMap.data }}
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ include "api7ee.fullname" . }}
+  labels:
+    {{- include "api7ee.labels" . | nindent 4 }}
+data:
+  {{- toYaml .Values.configMap.data | nindent 2 }}
+{{- end }}