feat(audit): flush audit logs into DB in a standalone goroutine

application/application.go

@@ -164,6 +164,14 @@ func (s *server) Start() error {
 }
 
 func (s *server) Close() {
+	// Close audit recorder first to ensure all logs are persisted
+	if s.auditRecorder != nil {
+		s.logger.Info("Closing audit recorder...")
+		if err := s.auditRecorder.Close(); err != nil {
+			s.logger.Error("Failed to close audit recorder: %s", err)
+		}
+	}
+
 	if s.dbClient != nil {
 		s.logger.Info("Shutting down database connection...")
 		if err := s.dbClient.Close(); err != nil {