Shorten paper title to When Does a Perturbation Model Know Enough?

Add descriptor-non-redundancy vs task-non-additivity distinction to halt-head section

Scrub dataset names from card; remove base-model from title

Retitle: lead with method + separate working frozen heads from collapsed CD4-native negative

Update model card: honest pseudobulk-collapse framing, non-redundancy vs non-additivity, corrected cell counts, paper title

Add checkpoints/last.ckpt

Add checkpoints/best.ckpt

Add halt_heads/halthead_jurkat.pt

Add halt_heads/halthead_k562.pt

Add halt_heads/halthead_hepg2.pt

Add halt_heads/halthead_rpe1.pt

Add config/hparams.yaml

Add README.md

Add config/config.yaml

Add halt_heads/halthead_rpe1_meta.json

Add halt_heads/halthead_jurkat_meta.json

Add halt_heads/halthead_hepg2_meta.json

Add halt_heads/halthead_k562_meta.json

Add config/state_halt.yaml

initial commit