The `alloy` ClusterIP service only exposes port 12345 (UI/metrics).
OTLP HTTP ingestion on port 4318 is on the separate `alloy-otlp` service.
Pointing OTEL_EXPORTER_OTLP_ENDPOINT at `alloy:4318` caused continuous
SocketTimeoutException in neuron-mcp. Updated both blue and green deployments.