PIPE-2908: Use 'T'-gaintable for single-pol data.
Switch the 'inf_EB_gaintype' book-keeping to use the 'T'-gaintable
for single-polarization data. This ensures correct solution flagging stats in this specific scenario.
PIPE-2908: Avoid the 'combinespwpol' fallback for single-pol data.
The 'combinespwpol' fallback logic in `analyze_inf_EB_flagging` is intended to improve calibration for dual-polarization data by checking if using `gaintype='T'` is better than`gaintype='G'`. For single-polarization data, `gaintype` is already 'T', so this check is unnecessary and can lead to errors if it proceeds.
Pull request #1693: PIPE-2695 hsd baseline kmean clustering failed for too few 100 line detections
Merge in PIPE/pipeline from PIPE-2695-hsd_baseline-kmean-clustering-failed-for-too-few-100-line-detections to main
* commit '3002c078b6054355b8d5f36b97db0573ba3d547f': PIPE-2695 skip clustering analysis with the number of clusters exceeding number of data to be classified
