ci: move lighthouse job to main workflow

.github/workflows/build.yml

@@ -217,6 +217,36 @@ jobs:
         with:
           verbose: true
 
+  lighthouse-test:
+    name: Tests / Lighthouse CI
+    runs-on: ubuntu-latest
+    needs:
+      - compile
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - run: corepack enable
+      - uses: actions/setup-node@v4
+        with:
+          node-version: "lts/*"  # latest lts
+          check-latest: true
+          cache: "yarn"
+      - uses: ./.github/gradle-action
+      - run: ./gradlew classes
+      - run: yarn install
+      - name: Run Lighthouse CI
+        run: |
+          npx lhci collect
+          npx lhci assert
+      - name: Upload Lighthouse CI results
+        uses: actions/upload-artifact@v4
+        if: always()
+        with:
+          name: lighthouse-ci-results-${{ github.run_id }}-${{ github.sha }}
+          path: .lighthouseci/
+          retention-days: 30
+
   test-docker-image:
     name: Tests / docker image
     runs-on: ubuntu-latest
@@ -279,6 +309,7 @@ jobs:
     if: ${{ github.event_name == 'pull_request' }}
     needs:
       - test
+      - lighthouse-test
       - test-docker-image
       - dependency-review
     steps:
@@ -290,6 +321,7 @@ jobs:
     runs-on: ubuntu-latest
     needs:
       - test
+      - lighthouse-test
       - test-docker-image
     # This job also has an output that can be used by downstream jobs.
     # https://docs.github.com/en/actions/using-jobs/defining-outputs-for-jobs