Refactor radar system

data_acq_and_processing/preprocessing/calibration_master/include/channel_bundle_support.hpp

@@ -16,6 +16,9 @@ struct ChannelTrace {
     std::vector<ipc::Complex32> samples{};
 };
 
+void validate_channel_trace_layout(const ChannelTrace& trace, const std::string& label, const ipc::ComboKey& combo);
+[[nodiscard]] auto frequency_axes_match(std::span<const float> left, std::span<const float> right) -> bool;
+
 class S21CalibrationBundle {
   public:
     void load(const std::string& path);