feat: extend ASE bridge for tensor properties

[Ramlaoui]

Summary

• accept supported tensor custom ndarray values from ASE info, arrays, and calculator results as molecule-scope properties
• add source/key-aware errors for unsupported enabled ASE custom values, with copy_info/copy_arrays opt-outs
• document and test tensor routing: molecule tensors to atoms.info, atom-scope tensors to atoms.arrays

Validation

• rtk cargo fmt --all --check
• rtk cargo check -p atompack -p atompack-py
• cd atompack-py && rtk uv run --no-sync --extra dev --locked ruff check python/atompack/ase_bridge.py python/atompack/init.pyi tests/test_from_ase.py
• cd atompack-py && rtk uv run --no-sync --extra dev --locked ruff format --check python/atompack/ase_bridge.py python/atompack/init.pyi tests/test_from_ase.py
• cd atompack-py && rtk uv run --no-sync --extra dev --locked --with ase pytest tests/test_from_ase.py -q

[Ramlaoui]

Rebased this stacked branch onto the updated core PR after the add_molecules clone-removal performance fix. No ASE-specific logic changed in the rebase.

Validation after rebase:

• uv run --no-sync --extra dev --locked --with 'ase>=3.22' pytest tests/test_from_ase.py -q -> 22 passed