Fix rel_crlb/log10_cond: torch.linalg.pinv correctness bug

Upload croissant.json with huggingface_hub

Fill in code-repo URL (github.com/Soarr01/plantforge); BibTeX still pending paper

Add identifiability null-result caveat to annotations description

Initial corpus upload: 240k instances, 5 families x 4 excitations x 3 rates

initial commit