Add PyPI cache worker config and increase memory limit

- Add orchard.pypiCache config section to helm values
- Set default workers to 2 (reduced from 5 to limit memory)
- Bump pod memory from 512Mi to 768Mi (request=limit)
- Add ORCHARD_PYPI_CACHE_* env vars to deployment template

helm/orchard/templates/deployment.yaml

@@ -144,6 +144,20 @@ spec:
             - name: ORCHARD_DATABASE_POOL_TIMEOUT
               value: {{ .Values.orchard.database.poolTimeout | quote }}
             {{- end }}
+            {{- if .Values.orchard.pypiCache }}
+            {{- if .Values.orchard.pypiCache.workers }}
+            - name: ORCHARD_PYPI_CACHE_WORKERS
+              value: {{ .Values.orchard.pypiCache.workers | quote }}
+            {{- end }}
+            {{- if .Values.orchard.pypiCache.maxDepth }}
+            - name: ORCHARD_PYPI_CACHE_MAX_DEPTH
+              value: {{ .Values.orchard.pypiCache.maxDepth | quote }}
+            {{- end }}
+            {{- if .Values.orchard.pypiCache.maxAttempts }}
+            - name: ORCHARD_PYPI_CACHE_MAX_ATTEMPTS
+              value: {{ .Values.orchard.pypiCache.maxAttempts | quote }}
+            {{- end }}
+            {{- end }}
             {{- if .Values.orchard.auth }}
             {{- if or .Values.orchard.auth.secretsManager .Values.orchard.auth.existingSecret .Values.orchard.auth.adminPassword }}
             - name: ORCHARD_ADMIN_PASSWORD

helm/orchard/values.yaml

@@ -54,10 +54,10 @@ ingress:
 resources:
   limits:
     cpu: 500m
-    memory: 512Mi
+    memory: 768Mi
   requests:
     cpu: 500m
-    memory: 512Mi
+    memory: 768Mi
 
 livenessProbe:
   httpGet:
@@ -120,6 +120,12 @@ orchard:
     mode: "presigned"  # presigned, redirect, or proxy
     presignedUrlExpiry: 3600  # Presigned URL expiry in seconds
 
+  # PyPI Cache Worker settings
+  pypiCache:
+    workers: 2  # Number of concurrent cache workers (reduced to limit memory usage)
+    maxDepth: 10  # Maximum recursion depth for dependency caching
+    maxAttempts: 3  # Maximum retry attempts for failed cache tasks
+
   # Authentication settings
   auth:
     # Option 1: Plain admin password (creates K8s secret)