Generate reference data for golden tests. This function creates reproducible test data that can be used to validate consistency across package versions.
Details
This function generates the following golden test data:
reference_data.rds - Basic test matrices and metadata
matrix_dataset.rds - Example fmri_dataset object
fmri_series.rds - Example FmriSeries data
sampling_frame.rds - Example sampling_frame object
mock_neurvec.rds - Mock NeuroVec object for testing