PERF(grafana): optimize cpu requests based on

- actual usage from grafa...
- external-secrets: 20m → 5m (actual: 1m)
- external-secrets-webhook: 10m → 2m (actual: 1m)
- external-secrets-cert: 10m → 2m (actual: 1m)
- cnpg: 100m → 5m (actual: 2m)
- haproxy-ingress: 100m → 15m (actual: 9-10m)

postgresql-dev/helm-values/postgresql-dev.yaml

@@ -26,9 +26,7 @@ resources:
   requests:
     memory: "256Mi"
     cpu: "30m"  # Reduced to 30% of original (100m -> 30m)
-  limits:
-    # cpu: removed to prevent throttling
-    memory: "1Gi"
+  limits: {}  # Empty limits to prevent Helm chart defaults in standalone mode
 
 metrics:
   enabled: false