chore: migrate from Poetry to uv and bump version to 6.0.0

[ymarcon]

• Migrate build system from Poetry to uv with Hatchling backend
• Convert pyproject.toml to PEP 621 standard format
• Update Python support from 3.7+ to 3.10+ (Python 3.7 EOL)
• Replace poetry.lock with uv.lock
• Update all Makefile commands to use uv (sync, run, build)
• Update GitHub Actions CI/CD workflows to use astral-sh/setup-uv@v4
• Change PyPI publishing to use uv publish with UV_PUBLISH_TOKEN
• Add .python-version file for automatic Python version management
• Update README with uv development setup instructions
• Fix bug in init_otp() null pointer exception when WWW-Authenticate header is missing
• Bump package version from 5.3.0 to 6.0.0

All 35 tests passing.

[Copilot]

Pull request overview

This PR migrates the project’s packaging/build workflow from Poetry to uv (with Hatchling + PEP 621 pyproject.toml), updates CI/CD accordingly, bumps the package version to 5.4.0, and includes a small runtime fix in init_otp().

Changes:

• Replace Poetry configuration/lockfile with pyproject.toml (PEP 621 + Hatchling) and uv.lock, and bump version to 5.4.0.
• Update developer tooling + GitHub Actions workflows to use uv for sync/run/build/publish.
• Fix init_otp() to avoid errors when WWW-Authenticate is missing on 401 responses.

Reviewed changes

Copilot reviewed 7 out of 10 changed files in this pull request and generated 10 comments.

Show a summary per file

File	Description
pyproject.toml	Converts metadata to PEP 621, updates Python support to 3.8+, switches build backend to Hatchling, bumps version.
uv.lock	Adds uv lockfile for resolved dependencies across supported Python versions.
poetry.lock	Removes Poetry lockfile as part of migration.
Makefile	Replaces Poetry commands with uv equivalents for install/test/build.
.github/workflows/ci.yml	Uses astral-sh/setup-uv@v4 + uv sync/run for CI.
.github/workflows/deploy.yml	Uses uv to sync/run/build and publish to PyPI via UV_PUBLISH_TOKEN.
README.md	Updates development setup instructions to uv.
.python-version	Pins a default local Python version (3.8).
.gitignore	Adds .serena/ and normalizes debug.py entry formatting.
obiba_opal/core.py	Formatting cleanup + init_otp() 401 header handling change.

Comments suppressed due to low confidence (1)

obiba_opal/core.py:363

• OpalRequest.resource() assigns to self.resource, which shadows the resource() method on the instance. This can cause if self.resource: to be true even when a resource was never set (because it resolves to the bound method), and it prevents calling .resource() more than once. Use a separate attribute name (e.g., _resource) and update __build_request() to check that instead.

    def resource(self, ws):
        self.resource = ws
        return self

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