Add Copilot development environment setup workflow

[Copilot]

Configures Copilot's development environment to mirror CI/CD tooling.

Changes

• .github/workflows/copilot-setup-steps.yml: GitHub Actions workflow that configures the Copilot coding agent environment
  • Uses required job name copilot-setup-steps per GitHub documentation
  • Installs uv 0.10.2 (matches version used in GitHub Actions workflows)
  • Sets up Python from pyproject.toml
  • Runs uv sync --all-packages to install all dependencies
  • Includes workflow triggers for testing the setup file

This enables Copilot agents to have all project dependencies pre-installed when working on the repository, following the official GitHub Copilot environment customization approach.

Original prompt

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This section details on the original issue you should resolve

<issue_title>Configure copilot development environment</issue_title>
<issue_description>The development environment for copilot can be preconfigured: https://docs.github.com/en/enterprise-cloud@latest/copilot/how-tos/use-copilot-agents/coding-agent/customize-the-agent-environment#preinstalling-tools-or-dependencies-in-copilots-environment

Create the required file based on the existing github actions</issue_description>

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

• Fixes Configure copilot development environment #22

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✨ Let Copilot coding agent set things up for you — coding agent works faster and does higher quality work when set up for your repo.

[g3force]

This is not what was requested. Checkout the documentation. You should create a copilot-setup-steps.yml file that contains GH action-like configuration. Remove the setup.sh script.

[Copilot]

This is not what was requested. Checkout the documentation. You should create a copilot-setup-steps.yml file that contains GH action-like configuration. Remove the setup.sh script.

Fixed in commit c054903. Removed the setup.sh script and created .github/workflows/copilot-setup-steps.yml with the required GitHub Actions workflow format and job name.