Prepare GreyJack 0.3.9 for publishing

[CameleoGrey]

Prepare GreyJack 0.3.9 for manual publishing with Maturin. Default move selection now considers semantic-group size, and plain and incremental sampling share a canonical delta, fixing native panics and swap-edge score mismatches. Tabu selection and LSHADE donor selection are bounded; invalid move portfolios fail with actionable errors.

Changes to multiple planning variables on one entity now produce one complete candidate row. For example, a candidate changing both x and y no longer emits separate rows that reset the other field. Variable validation also rejects ranges that cannot be sampled safely.

Build and test CPython 3.10–3.14 wheels for Linux x86-64, Windows amd64, and Apple Silicon macOS. Validate standalone wheels and a source distribution rebuilt outside the checkout, collect hashes tied to the source commit, and keep PyPI uploading manual. Intel macOS is no longer a release target because current mandatory Numba/llvmlite packages do not provide its wheels. Updated dependency floors and lockfiles include fixes for the reported PyArrow, Protobuf, rand, and array-init-cursor issues.

Local validation:

• 252 GreyJack Python tests passed against the rebuilt development extension.
• 62 independent OR-Tools tests passed.
• 15 Rust tests passed.
• A stripped normal wheel was successfully built from a source distribution.

Release validation:

• CI run 35940169797 passed for commit 9263d6265c229ad0eb62f52677fa968e8dd7a317.
• All 15 Python/platform wheel jobs, the source-distribution rebuild, Rust tests, and complete artifact collection passed.
• The tested Linux CPython 3.12 wheel was independently installed outside the checkout: all 252 GreyJack tests passed, and bounded original employee/cloud solves matched independently recalculated scores.
• The bundle contains 15 wheels, one sdist, and a SHA-256 inventory tied to the validated commit.

Manual build and publishing instructions are in greyjack/RELEASING.md. This draft PR has not been merged or tagged, and nothing has been uploaded to PyPI.