♻️ Fix Python 3.14 Compatibility (#20)

Signed-off-by: pcaversaccio <pascal.caversaccio@hotmail.ch>
Co-authored-by: Daejun Park <daejunpark@gmail.com>
Co-authored-by: Claude Sonnet 4.5 <noreply@anthropic.com>

sync lock file

change package name to just-solve-it

(jsi has a name collision with jsl on PyPI)