Update inputs: 5 Fort A.P. Hill 2021 scenes (all LWHSI1) + recomputed per-scene atmosphere

Add Path27 air temperature and refresh DATASET_CARD.md

Add Path27 air temperature and refresh DATASET_CARD.md

Update DATASET_CARD: 120 nm cube wavelength shift; drop Path9/Step13 notes

Replace shared USSA atmosphere with per-scene libRadtran zenith products

Replace 202108 Path9 with Path27 LWHSI1 scene

Remove Path32 scene; keep five-cube HADAR input bundle

Add complete HADAR /root/inputs bundle (ENVI cubes + USSA npz)

Add dataset card for frozen HADAR inputs

initial commit