fix: depollute v02 web performance telemetry

internal/cloud/web-performance.ts

@@ -111,6 +111,8 @@ export function createWebPerformanceStore(options: WebPerformanceStoreOptions =
     if (!Number.isFinite(rawValue) || rawValue < 0) return null;
     const value = isCls ? Math.min(rawValue, 10) : Math.min(rawValue, 120);
     const route = webPerformanceRouteTemplate(input.route ?? payload.page ?? "/workspace");
+    const pageRoute = webPerformanceRouteTemplate(payload.page ?? "/workspace");
+    if (isObservabilityNoise({ kind, metric, route, pageRoute })) return null;
     const labels = {
       ...baseLabels,
       kind,
@@ -259,6 +261,12 @@ function sampleLabels(labels: Record<string, string>) {
   };
 }
 
+function isObservabilityNoise(event: { kind: string; metric: string; route: string; pageRoute: string }) {
+  if (event.pageRoute === "/performance") return true;
+  if (event.route === "/performance" && (event.kind === "navigation" || event.kind === "web_vital" || event.kind === "long_task")) return true;
+  return event.route === "/v1/web-performance" || event.route.startsWith("/v1/web-performance/");
+}
+
 function recordHistogram(series: Map<string, HistogramSeries>, labels: Record<string, string>, value: number, buckets: number[], maxSeries: number) {
   const key = stableLabelKey(labels);
   let entry = series.get(key);