refactor(observability): use canonical otel component names

deploy/observability/otel-log-collector.yaml

@@ -9,7 +9,7 @@ metadata:
 data:
   config.yaml: |
     receivers:
-      file_log/nereus:
+      filelog/nereus:
         include:
           - /var/log/pods/nereus_*/*/*.log
         include_file_path: true
@@ -26,15 +26,15 @@ data:
         timeout: 5s
 
     exporters:
-      otlp_http/loki:
+      otlphttp/loki:
         endpoint: http://loki.observability.svc.cluster.local:3100/otlp
 
     service:
       pipelines:
         logs:
-          receivers: [file_log/nereus]
+          receivers: [filelog/nereus]
           processors: [memory_limiter, batch]
-          exporters: [otlp_http/loki]
+          exporters: [otlphttp/loki]
 ---
 apiVersion: apps/v1
 kind: DaemonSet