materialized view and a bit better ui

otel-ui/src/lib/trace-summary.ts

@@ -0,0 +1,16 @@
+import type { ProcessedTrace } from "../components/TraceVisualization"
+import type { TraceSummary } from "./types"
+
+/** Same shape the server returns, derived from a fully loaded trace (for lists built from live data). */
+export function summarizeTrace(t: ProcessedTrace): TraceSummary {
+  return {
+    id: t.id,
+    name: t.name,
+    startTime: t.startTime,
+    endTime: t.endTime,
+    duration: t.duration,
+    spanCount: t.spans.length,
+    errorCount: t.errorCount,
+    services: t.services,
+  }
+}