PERF(observability): optimize resources via VPA

- alertmanager: CPU 15m/15m, memory 100Mi/100Mi
- blackbox-exporter: CPU 15m/32m, memory 100Mi/100Mi
- goldilocks: controller 15m/25m, dashboard 15m/15m
- grafana: CPU 22m/24m, memory 144Mi/242Mi (upperBound)
- kube-state-metrics: CPU 15m/15m, memory 100Mi/100Mi
- loki: CPU 10m/69m, memory 225Mi/323Mi
- node-exporter: CPU 15m/15m, memory 100Mi/100Mi
- opentelemetry: CPU 34m/410m, memory 142Mi/1024Mi
- prometheus-operator: CPU 15m/15m, memory 100Mi/100Mi
- tempo: CPU 15m/15m, memory 100Mi/109Mi
- thanos: CPU 15m/15m, memory 100Mi/126Mi
- vpa: CPU 15m/15m, memory 100Mi/100Mi

goldilocks/helm-values.yaml

@@ -6,11 +6,13 @@ dashboard:
   enabled: true
   replicaCount: 1
 
+  # Resource settings (VPA lowerBound/upperBound)
   resources:
     requests:
       cpu: 15m
       memory: 100Mi
     limits:
+      cpu: 15m
       memory: 100Mi
 
   service:
@@ -49,11 +51,13 @@ controller:
   enabled: true
   replicaCount: 1
 
+  # Resource settings (VPA lowerBound/upperBound)
   resources:
     requests:
       cpu: 15m
       memory: 100Mi
     limits:
+      cpu: 25m
       memory: 100Mi
 
   # Enable VPA recommendations for all namespaces