Extend PR workflow with preview deployment to staging environment

Co-authored-by: waldekmastykarz <11164679+waldekmastykarz@users.noreply.github.com>

Author: Copilot

.github/workflows/build-check.yml

@@ -4,6 +4,15 @@ on:
   pull_request:
     branches: [main]
 
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+concurrency:
+  group: preview-${{ github.event.pull_request.number }}
+  cancel-in-progress: true
+
 jobs:
   build:
     runs-on: ubuntu-latest
@@ -22,3 +31,21 @@ jobs:
 
       - name: Fetch samples & Build
         run: npm run build
+
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v4
+        with:
+          path: dist
+
+  deploy-preview:
+    needs: build
+    runs-on: ubuntu-latest
+    environment:
+      name: github-pages-preview
+      url: ${{ steps.deployment.outputs.deployment_url }}
+    steps:
+      - name: Deploy preview to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4
+        with:
+          preview: true