fix: make traffic payout metrics resilient when ledger table missing

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

@@ -12,6 +12,15 @@ function asRecordJson(value: unknown): Record<string, unknown> | undefined {
   return undefined;
 }
 
+function isMissingTableError(error: unknown): boolean {
+  return (
+    typeof error === "object" &&
+    error !== null &&
+    "code" in error &&
+    (error as { code: string }).code === "P2021"
+  );
+}
+
 export async function GET(request: NextRequest) {
   if (MONITOR_TOKEN) {
     const token = request.headers.get("x-traffic-token");
@@ -90,22 +99,33 @@ export async function GET(request: NextRequest) {
         metadata: true,
       },
     }),
-    prisma.ledgerEntry.count({
-      where: {
-        created_at: { gte: since },
-        phase: "CAPTURE",
-        response_status: "SUCCESS",
-      },
-    }),
-    prisma.ledgerEntry.count({
-      where: {
-        created_at: { gte: since },
-        phase: "RELEASE",
-        response_status: "SUCCESS",
-      },
-    }),
   ]);
 
+  let capturedPayoutCount = 0;
+  let releasedPayoutCount = 0;
+  try {
+    [capturedPayoutCount, releasedPayoutCount] = await Promise.all([
+      prisma.ledgerEntry.count({
+        where: {
+          created_at: { gte: since },
+          phase: "CAPTURE",
+          response_status: "SUCCESS",
+        },
+      }),
+      prisma.ledgerEntry.count({
+        where: {
+          created_at: { gte: since },
+          phase: "RELEASE",
+          response_status: "SUCCESS",
+        },
+      }),
+    ]);
+  } catch (error) {
+    if (!isMissingTableError(error)) {
+      throw error;
+    }
+  }
+
   const actionSummary = Object.fromEntries(
     summaryRows.map((row) => [row.action, row._count._all])
   );