Update artifact metadata and license

LICENSE

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+InvDesMobility Research Artifact License
+
+Copyright (c) 2026 InvDesMobility authors.
+
+These Hugging Face repositories are released as research artifacts for
+reproducibility, peer review, and scholarly reuse of the InvDesMobility study.
+They contain processed datasets, trained or fixed model weights, model metadata,
+and documentation cards.
+
+Code in the associated GitHub repositories is governed by the license stated in
+those repositories. This artifact license applies to the data and model
+artifacts hosted in this Hugging Face repository.
+
+You may use, copy, and redistribute these artifacts for research and educational
+purposes with attribution to the InvDesMobility manuscript and to any applicable
+upstream resources. Redistribution of derived artifacts should preserve this
+notice and should not imply endorsement by the authors.
+
+This release does not include, redistribute, or grant rights to proprietary or
+licensed third-party materials that are not present in the repository, including
+VASP executables, POTCAR/pseudopotentials, raw VASP working directories,
+OUTCAR, CHGCAR, WAVECAR, vasprun.xml, vaspout.h5, credentials, API keys, SMTP
+settings, or local database state.
+
+Some source data, pretrained checkpoints, libraries, and scientific workflows
+may be subject to their original licenses and citation requirements, including
+2DMatPedia, DiffCSP, ALIGNN, MEGNet, pymatgen, JARVIS, and VASP-related
+dependencies where applicable. Users are responsible for complying with those
+upstream terms.
+
+THE ARTIFACTS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR
+A PARTICULAR PURPOSE, AND NONINFRINGEMENT. The authors are not liable for any
+claim, damages, or other liability arising from use of these artifacts.