Awesome GitHub Site - Configure Astro GitHub Pages publishing workflow

[ashleyshaw]

Build/CI Summary

Set up the GitHub Actions workflow that builds the Astro site and publishes the generated static output to GitHub Pages.

Steps / Checklist

• Build the Astro site in CI
• Publish the generated artefact via GitHub Pages actions
• Keep the workflow aligned with the custom domain setup
• Add any required Pages build artefact settings
• Ensure the workflow is reproducible on develop

Acceptance Criteria

• Astro builds successfully in GitHub Actions
• The published site is deployable through GitHub Pages
• The workflow is documented in the project plan
• The deployment path does not depend on Jekyll

Additional Context

The workflow should be the only publishing path for the site and should support later phase 2 expansion without rewriting the hosting model.

References

• GitHub Pages publishing source docs
• Astro site scaffold in the repo

[linear-code]

LS-908

[ashleyshaw]

Current implementation is in PR #769. The PR keeps the Astro GitHub Pages publishing path aligned with the WCEU conference site changes; the remaining review and merge steps are tracked there.