TF-0MN0PBAJI1M69L6H: Fix browser imports, expose presets for web demo, add Playwright CI

.github/workflows/web-playwright.yml

@@ -0,0 +1,52 @@
+name: Web Playwright E2E
+
+on:
+  push:
+    paths:
+      - 'web/**'
+      - 'presets/**'
+      - '.github/workflows/web-playwright.yml'
+  pull_request:
+    paths:
+      - 'web/**'
+      - 'presets/**'
+
+jobs:
+  web-e2e:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+      - name: Install root deps
+        run: npm ci
+      - name: Install web deps
+        run: npm ci --prefix web
+      - name: Install Playwright browsers
+        run: npx playwright install --with-deps
+        env:
+          PLAYWRIGHT_BROWSERS_PATH: /home/runner/.cache/ms-playwright
+      - name: Build web
+        working-directory: web
+        run: npm run build
+      - name: Debug: list Playwright cache and binaries
+        run: |
+          echo "PLAYWRIGHT_BROWSERS_PATH=/home/runner/.cache/ms-playwright"
+          ls -la /home/runner/.cache/ms-playwright || true
+          ls -la /home/runner/.cache/ms-playwright/* || true
+          node -e "console.log('node', process.version)"
+          npx playwright --version || true
+      - name: Run Playwright tests
+        working-directory: web
+        run: npx playwright test --reporter=list --output=../web-test-results
+        env:
+          CI: 'true'
+          PLAYWRIGHT_BROWSERS_PATH: /home/runner/.cache/ms-playwright
+      - name: Upload Playwright Report
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: playwright-report
+          path: web-test-results