fix(metrics): normalize route for smart-wire requests in metrics

Author: rajashish147

backend/src/plugins/prometheus.ts

@@ -44,12 +44,16 @@ const prometheusPlugin: FastifyPluginAsync = async (fastify) => {
     const diff = process.hrtime(request.startTime);
     const duration = diff[0] + diff[1] / 1e9;
 
-    const route =
+    let route =
       (request as any).routerPath ??
       request.routeOptions?.url ??
       request.raw.url?.split("?")[0] ??
       "unknown";
 
+    if (route.startsWith("/smart-wire/")) {
+      route = "/smart-wire/:slug";
+    }
+
     if (route === "/metrics") {
       httpRequestsInFlight.dec();
       return;