fix: configure GitHub Pages to use Actions workflow source (#113)

* fix: configure GitHub Pages to use Actions workflow source

Add `actions/configure-pages@v4` step to the build job so the workflow
self-configures the Pages source on every non-PR run. This prevents
silent regression if someone switches Pages settings back to legacy mode
in the UI.

The immediate fix (switching build_type from legacy to workflow via the
GitHub API) has already been applied to the repo settings.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix: move configure-pages step to deploy job

Per review feedback, configure-pages only needs to run when deploying.
Moving it to the deploy job (which already has the Pages write/OIDC
permissions and the non-PR guard) follows least-privilege and avoids
configuring Pages on runs where deployment is skipped.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: eurunuela

.github/workflows/docs.yml

@@ -93,6 +93,9 @@ jobs:
       name: github-pages
       url: ${{ steps.deployment.outputs.page_url }}
     steps:
+      - name: Configure GitHub Pages
+        uses: actions/configure-pages@v4
+
       - name: Deploy to GitHub Pages
         id: deployment
         uses: actions/deploy-pages@v4