feat: update the output timing for frame drop notifications

orbbec_camera/include/orbbec_camera/frame_timestamp_csv_logger.h

@@ -120,6 +120,7 @@ class FrameTimestampCsvLogger {
                            int64_t arrival_steady_us, bool publish_expected);
   void populatePublishData(StreamState &state, TrackedStream stream, int64_t publish_system_us,
                            int64_t publish_steady_us);
+  void reportDropLogFormatOnce();
 
   std::optional<int64_t> updateDelta(std::optional<int64_t> &previous, int64_t current);
 
@@ -143,6 +144,7 @@ class FrameTimestampCsvLogger {
   std::atomic_bool shutdown_requested_{false};
   bool writer_failed_ = false;
   bool queue_warning_active_ = false;
+  bool drop_log_format_reported_ = false;
   std::string csv_file_path_;
   std::ofstream csv_stream_;
   std::thread writer_thread_;