feat: add Elasticsearch access to Maestro deployment

- Add ELASTICSEARCH_URL and ELASTICSEARCH_API_KEY env vars
- Pull credentials from {env}/microservices/elasticsearch secret

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

deploy/helm-chart/templates/deployment.yaml

@@ -128,3 +128,14 @@ spec:
                 secretKeyRef:
                   name: prd-{{ .Values.app_name }}
                   key: AWS_DEFAULT_REGION
+            # Elasticsearch
+            - name: ELASTICSEARCH_URL
+              valueFrom:
+                secretKeyRef:
+                  name: prd-{{ .Values.app_name }}
+                  key: ELASTICSEARCH_URL
+            - name: ELASTICSEARCH_API_KEY
+              valueFrom:
+                secretKeyRef:
+                  name: prd-{{ .Values.app_name }}
+                  key: ELASTICSEARCH_API_KEY

deploy/helm-chart/templates/secret.yaml

@@ -38,3 +38,15 @@ spec:
       version: "AWSCURRENT"
       property: token
 
+  - secretKey: ELASTICSEARCH_URL
+    remoteRef:
+      key: {{ .Values.maestro.env }}/microservices/elasticsearch
+      version: "AWSCURRENT"
+      property: ELASTICSEARCH_URL
+
+  - secretKey: ELASTICSEARCH_API_KEY
+    remoteRef:
+      key: {{ .Values.maestro.env }}/microservices/elasticsearch
+      version: "AWSCURRENT"
+      property: ELASTICSEARCH_API_KEY
+