logging and diagnostic features added

internal/httpapp/middleware.go

@@ -28,13 +28,36 @@ func requestID(next http.Handler) http.Handler {
 func logging(next http.Handler) http.Handler {
 	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		start := time.Now()
-		next.ServeHTTP(w, r)
+
+		// Create response writer wrapper to capture status code
+		rw := &responseWriterWrapper{
+			ResponseWriter: w,
+			statusCode:     http.StatusOK,
+		}
+
+		next.ServeHTTP(rw, r)
+
 		d := time.Since(start)
 		id, _ := r.Context().Value(requestIDKey).(string)
-		log.Printf("%s %s %s rid=%s dur=%s", r.RemoteAddr, r.Method, r.URL.Path, id, d)
+
+		// Use structured logging if available, otherwise fallback to standard log
+		log.Printf("%s %s %s status=%d rid=%s dur=%s",
+			r.RemoteAddr, r.Method, r.URL.Path, rw.statusCode, id, d)
 	})
 }
 
+// responseWriterWrapper wraps http.ResponseWriter to capture status code
+// Note: This is different from the one in audit_middleware.go to avoid conflicts
+type responseWriterWrapper struct {
+	http.ResponseWriter
+	statusCode int
+}
+
+func (rw *responseWriterWrapper) WriteHeader(code int) {
+	rw.statusCode = code
+	rw.ResponseWriter.WriteHeader(code)
+}
+
 func newReqID() string {
 	var b [16]byte
 	if _, err := rand.Read(b[:]); err != nil {