Move from Poetry to uv

[Copilot]

Replaces Poetry with uv as the package and project manager across the entire toolchain.

Changes

• pyproject.toml: Migrated to PEP 621 [project] format. Dev dependencies moved to [dependency-groups] (PEP 735). Build backend switched from poetry-core to hatchling.
• Makefile: All poetry run → uv run, poetry install → uv sync, poetry build → uv build, poetry publish → uv publish. Version extraction updated from poetry version -s to tomllib inline.
• .github/workflows/action.yml: Replaced actions/setup-python + manual pip install poetry with astral-sh/setup-uv@v6. Removed poetry-version from the build matrix.
• .gitignore: poetry.lock → uv.lock.

Original prompt

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This section details on the original issue you should resolve

<issue_title>Move from Poetry to uv</issue_title>
<issue_description>See https://docs.astral.sh/uv/guides/install-python/</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Move from Poetry to uv #55

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[dannywillems]

@copilot also add an entry in the changelog

[Copilot]

@copilot also add an entry in the changelog

Added a CHANGELOG entry under [Unreleased] > Infrastructure in ac61419.

[dannywillems]

@copilot fix the conflicts

[Copilot]

@copilot fix the conflicts

Fixed in 92723dc. Incorporated the ruff (>=0.14.14,<0.16.0) and isort (>=7,<9) version constraint updates from main into pyproject.toml, and merged those CHANGELOG entries ([#50], [#51]) into the [Unreleased] section.

[dannywillems]

@copilot still conflicts to merge

[Copilot]

@copilot still conflicts to merge

Fixed in ac9c887. Created a proper merge commit (74f7812) that incorporates origin/main (ruff/isort dependency updates from #50 and #51) into our branch, resolving the git history conflict. The branch should now be mergeable without conflicts.