fix: restore python 3.14 install support

[stefan-jansen]

Summary

• route Python 3.14 onto compiled dependency versions that publish cp314 wheels
• refresh the lockfile for the 3.14 split
• document the 3.14 install fix in the changelog

Verification

• uv run --python 3.14 python -c "import ml4t.engineer as m; import importlib.metadata as md; print(md.metadata('ml4t-engineer')['Requires-Python'])"
• uv run ruff check --no-fix src tests .github
• uv run ruff format --check src tests .github
• uv run ty check
• uv run --python 3.14 pytest tests/ -q # hits existing numba cleanup abort after test execution; repo CI already treats >128 as non-failing
• uv build

[Copilot]

Pull request overview

This PR updates the packaging metadata and lockfile so ml4t-engineer can install on Python 3.14 by selecting dependency versions that publish cp314 wheels. It fits into the codebase as a packaging/distribution maintenance change rather than an application logic change.

Changes:

• Split several core scientific dependencies in pyproject.toml by Python version, using newer minimums for Python 3.14.
• Refreshed uv.lock to resolve Python 3.14 onto compatible package versions (for example numba, numpy, pandas, pyarrow, and scipy).
• Added a changelog entry documenting the Python 3.14 installability fix.

Reviewed changes

Copilot reviewed 2 out of 3 changed files in this pull request and generated 1 comment.

File	Description
uv.lock	Regenerated lockfile with Python-version-specific resolutions for compiled dependencies and related transitive packages.
pyproject.toml	Added Python 3.14 markers and newer minimum versions for core scientific/runtime dependencies.
CHANGELOG.md	Added release notes for the Python 3.14 install support fix and updated compare links.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.