fix: remove millisecond-to-microsecond conversion in response times

Remove unnecessary multiplication by 1000 and parseInt conversion in
request-handler middleware. The response-time library already provides
time in milliseconds, so no conversion is needed.

This fixes inflated response time values and preserves sub-millisecond
precision for accurate performance monitoring.

Fixes #1454

Author: leandrowilliam

src/registry/middleware/request-handler.ts

@@ -7,7 +7,7 @@ export default function requestHandler(): RequestHandler {
   return responseTime((req: Request, res: Response, time) => {
     const data: RequestData = {
       body: req.body,
-      duration: Number.parseInt(String(time * 1000), 10),
+      duration: time,
       headers: req.headers,
       method: req.method,
       path: req.path,