Handle disabled GitHub Pages in demo workflow

Author: FaulMit

.github/workflows/pages.yml

@@ -28,14 +28,36 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v5
 
+      - name: Check Pages configuration
+        id: pages
+        env:
+          GH_TOKEN: ${{ github.token }}
+          GH_REPO: ${{ github.repository }}
+        run: |
+          status="$(curl -sS -o /tmp/pages.json -w "%{http_code}" \
+            -H "Authorization: Bearer ${GH_TOKEN}" \
+            -H "Accept: application/vnd.github+json" \
+            "https://api.github.com/repos/${GH_REPO}/pages")"
+
+          if [ "$status" = "200" ]; then
+            echo "enabled=true" >> "$GITHUB_OUTPUT"
+            echo "GitHub Pages is enabled."
+          else
+            echo "enabled=false" >> "$GITHUB_OUTPUT"
+            echo "::notice title=GitHub Pages is not enabled::Open Settings > Pages and set Build and deployment Source to GitHub Actions, then rerun this workflow."
+          fi
+
       - name: Configure Pages
+        if: steps.pages.outputs.enabled == 'true'
         uses: actions/configure-pages@v5
 
       - name: Upload static site
+        if: steps.pages.outputs.enabled == 'true'
         uses: actions/upload-pages-artifact@v4
         with:
           path: public
 
       - name: Deploy to GitHub Pages
+        if: steps.pages.outputs.enabled == 'true'
         id: deployment
         uses: actions/deploy-pages@v4

README.md

@@ -203,6 +203,8 @@ npm run pack                  # unpacked desktop build
 
 The GitHub Pages demo publishes the `public/` folder and enables `demo-api.js` automatically outside localhost. It is useful for clicking through the interface, but all hardware data, benchmarks, stress tests, native runners, updates, and community sync are simulated.
 
+If the Demo Site workflow says GitHub Pages is not enabled, open repository Settings > Pages and set Build and deployment Source to GitHub Actions, then rerun the workflow.
+
 Release docs: [docs/RELEASE.md](docs/RELEASE.md).
 
 ## Security Model