Clarify checkpoint selection and Table 1 scope

Clarify CUDA evaluation and checkpoint-only validation

Add dfutissue_tisage_fixed_seed2_best.pth

Add dfutissue_unimatch_v2_fixed_seed1_best.pth

Add lutseg_tisage_1_8_seed0_best.pth

Add lutseg_unimatch_v2_1_8_seed0_best.pth

Add configs/tisage_dfutissue.yaml

Add configs/tisage_lutseg.yaml

Add LICENSE

Add checkpoint_metadata.json

Add segmentation_checkpoints.sha256

Add NOTICE.md

Add README.md

initial commit