build: switch to hatchling + hatch-vcs and add PyPI publish workflow

[PythonFZ]

Replace uv_build with hatchling/hatch-vcs for automatic git-tag versioning. Add GitHub Actions workflow for publishing to PyPI on release via trusted publishing.

Summary by CodeRabbit

• Chores
  • Set up automated publishing to PyPI via GitHub Actions workflow triggered on releases and manual dispatch.
  • Migrated from fixed versioning to dynamic version management sourced from version control system.
  • Updated build system configuration to support automated release workflows.

[coderabbitai]

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 0d38c914-072a-4240-99da-ec165afa705c

📥 Commits

Reviewing files that changed from the base of the PR and between 4ae859c and e1daf86.

⛔ Files ignored due to path filters (1)

• uv.lock is excluded by !**/*.lock

📒 Files selected for processing (3)

• .github/workflows/publish.yaml
• .gitignore
• pyproject.toml

📝 Walkthrough

Walkthrough

This pull request establishes automated CI/CD publishing infrastructure and implements dynamic versioning. It introduces a GitHub Actions workflow that builds and uploads packages to PyPI on release, switches to Hatch-based VCS versioning, and configures the build environment accordingly.

Changes

Cohort / File(s)	Summary
Publishing and Versioning Infrastructure .github/workflows/publish.yaml, .gitignore, pyproject.toml	Adds GitHub Actions workflow for building and publishing to PyPI with two jobs (build and upload). Implements dynamic VCS-based versioning using hatchling and hatch-vcs, replacing fixed versioning and the uv_build backend. Ignores generated version file in gitignore.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~12 minutes

Poem

🐰 Hatchlings hatch and versions bloom,
From git's sweet soil they zoom and zoom,
To PyPI we hop with cheer,
Automation makes it clear!
One workflow script, one build divine,
All the versions now align! 📦✨

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch feat/hatch-vcs-publish

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