Migrate from pip to uv for dependency management.

[Antoliny0919]

I have switched the package manager to uv 💪

[Antoliny0919]

Long time no see @chriswedgwood 😁

I’ve changed the package manager, and I think this might cause some issues during production deployment.
Could you please take a look at this?

[Copilot]

Pull Request Overview

This PR migrates the project from traditional pip-based dependency management to uv, a modern Python package manager. The migration consolidates requirements files into pyproject.toml dependency groups and updates all tooling to use uv for dependency installation and script execution.

Key Changes:

• Replaced requirements/*.txt files with PEP 735 dependency groups in pyproject.toml
• Migrated all Python execution commands to use uv run prefix
• Simplified Dockerfile by switching to uv-based base image and eliminating multi-stage build

Reviewed Changes

Copilot reviewed 10 out of 11 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
requirements/production.txt	Deleted as dependencies migrated to pyproject.toml
requirements/development.txt	Deleted as dependencies migrated to pyproject.toml
requirements/base.txt	Deleted as dependencies migrated to pyproject.toml
pyproject.toml	Added dependency groups (django, base, dev, prod) using PEP 735 format
docker-compose.local.yml	Removed SELinux :z mount option and updated command to use uv run
compose/local/django/start	Updated all Python commands to use uv run prefix
compose/local/django/Dockerfile	Switched to uv base image and simplified build process
README.rst	Updated installation instructions with uv commands and added syntax errors
.github/workflows/pythonpackage.yml	Updated CI workflow to use uv for dependency management
.github/dependabot.yml	Replaced pip ecosystem with uv, added npm and github-actions ecosystems

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[Copilot]

Corrected spelling of 'Window' to 'Windows'.

Suggested change

	# Window
	# Windows

[Copilot]

This uses Markdown syntax within a reStructuredText file. The [!NOTE]:: directive and [document](URL) link syntax are invalid in RST. Use proper RST directives like .. note:: and `link text <URL>`_ instead.

Suggested change

	.. [!NOTE]::
	For detailed instructions on installing uv, please refer to this [document](https://docs.astral.sh/uv/getting-started/installation/).
	.. note::
	For detailed instructions on installing uv, please refer to this `document <https://docs.astral.sh/uv/getting-started/installation/>`_.

[chriswedgwood]

Long time no see @chriswedgwood 😁

I’ve changed the package manager, and I think this might cause some issues during production deployment.

Could you please take a look at this?

Hi 👋 yip makes sense moving to a uv. Let me take a look and see how it impacts our Heroku build process. Also I'm going to ask the ops team to get you Heroku access so you can see what's going on there.