work

ops/devops/lnm/metrics-dashboard.json

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+{
+  "title": "LNM Backfill Metrics",
+  "panels": [
+    {"type": "stat", "title": "Observations", "targets": [{"expr": "advisory_observations_total"}]},
+    {"type": "stat", "title": "Linksets", "targets": [{"expr": "linksets_total"}]},
+    {"type": "graph", "title": "Ingest→API latency p95", "targets": [{"expr": "histogram_quantile(0.95, rate(ingest_api_latency_seconds_bucket[5m]))"}]},
+    {"type": "graph", "title": "Backfill throughput", "targets": [{"expr": "rate(lnm_backfill_processed_total[5m])"}]}
+  ]
+}