feat: add conversion-oriented traffic dashboard

apps/web/src/app/api/traffic/route.ts

@@ -24,7 +24,16 @@ export async function GET(request: NextRequest) {
   const minutes = Math.max(parseInt(query.get("minutes") || "1440", 10), 5);
   const since = new Date(Date.now() - minutes * 60 * 1000);
 
-  const [summaryRows, actorSummaryRows, externalActorRows, totalRows, latestEvents] = await Promise.all([
+  const [
+    summaryRows,
+    actorSummaryRows,
+    externalActorRows,
+    totalRows,
+    latestEvents,
+    judgeCompleteRows,
+    capturedPayoutCount,
+    releasedPayoutCount,
+  ] = await Promise.all([
     prisma.auditEvent.groupBy({
       by: ["action"],
       where: {
@@ -72,6 +81,29 @@ export async function GET(request: NextRequest) {
         createdAt: true,
       },
     }),
+    prisma.auditEvent.findMany({
+      where: {
+        createdAt: { gte: since },
+        action: "JUDGE_COMPLETE",
+      },
+      select: {
+        metadata: true,
+      },
+    }),
+    prisma.ledgerEntry.count({
+      where: {
+        createdAt: { gte: since },
+        phase: "CAPTURE",
+        response_status: "SUCCESS",
+      },
+    }),
+    prisma.ledgerEntry.count({
+      where: {
+        createdAt: { gte: since },
+        phase: "RELEASE",
+        response_status: "SUCCESS",
+      },
+    }),
   ]);
 
   const actionSummary = Object.fromEntries(
@@ -133,6 +165,44 @@ export async function GET(request: NextRequest) {
     { external: 0, internal: 0 } as Record<string, number>
   );
 
+  const discoveryEvents =
+    (actionSummary["EXTERNAL_LIST_OPEN_TASKS"] || 0) +
+    (actionSummary["EXTERNAL_LIST_OPEN_TASKS_MCP"] || 0);
+
+  const claimEvents = actionSummary["EXTERNAL_CLAIM_TASK_SUCCESS"] || 0;
+  const submitEvents = actionSummary["EXTERNAL_SUBMIT_SOLUTION_SUCCESS"] || 0;
+  const judgePassEvents = judgeCompleteRows.filter((row) => {
+    const metadata = asRecordJson(row.metadata);
+    return metadata?.overall_result === "PASS";
+  }).length;
+  const judgeFailEvents = judgeCompleteRows.filter((row) => {
+    const metadata = asRecordJson(row.metadata);
+    return metadata?.overall_result === "FAIL";
+  }).length;
+
+  const conversionRate = (numerator: number, denominator: number) => {
+    if (!denominator) return 0;
+    return Math.round((numerator / denominator) * 1000) / 10;
+  };
+
+  const externalFunnel = {
+    discovery_events: discoveryEvents,
+    claim_events: claimEvents,
+    submit_events: submitEvents,
+    judge_pass_events: judgePassEvents,
+    judge_fail_events: judgeFailEvents,
+    judge_total_events: judgePassEvents + judgeFailEvents,
+    payout_captured: capturedPayoutCount,
+    payout_released: releasedPayoutCount,
+  };
+
+  const conversionRates = {
+    claim_rate: conversionRate(claimEvents, discoveryEvents),
+    submit_rate: conversionRate(submitEvents, claimEvents),
+    pass_rate: conversionRate(judgePassEvents, submitEvents),
+    payout_rate: conversionRate(capturedPayoutCount, judgePassEvents),
+  };
+
   const externalEventTypes = Object.entries(actionSummary)
     .filter(([action]) => action.startsWith("EXTERNAL_"))
     .map(([action, count]) => ({ action, count }));
@@ -172,6 +242,8 @@ export async function GET(request: NextRequest) {
     channel_summary: channelSummary,
     actor_summary: actorSummary,
     external_actor_summary: externalActorSummary,
+    external_funnel: externalFunnel,
+    conversion_rates: conversionRates,
     external_event_types: externalEventTypes,
     internal_event_types: internalEventTypes,
     recent_external_events: recentExternalEvents,