test(recommendations): Playwright E2E smoke suite for the recommendations flow (closes #167)

.github/workflows/frontend-e2e.yml

@@ -0,0 +1,63 @@
+name: Frontend E2E (PR)
+
+on:
+  pull_request:
+    branches:
+      - main
+    paths:
+      - "frontend/**"
+      - ".github/workflows/frontend-e2e.yml"
+
+permissions:
+  contents: read
+
+concurrency:
+  group: frontend-e2e-pr-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  playwright:
+    name: Playwright Chromium
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    defaults:
+      run:
+        working-directory: frontend
+    env:
+      CI: "true"
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
+        with:
+          persist-credentials: false
+
+      - name: Set up Node.js
+        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
+        with:
+          node-version: "24"
+          cache: "npm"
+          cache-dependency-path: frontend/package-lock.json
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build
+        run: npm run build
+
+      - name: Install Chromium
+        run: npx playwright install --with-deps chromium
+
+      - name: Run Playwright tests
+        run: npm run test:e2e
+
+      - name: Upload Playwright failure artifacts
+        if: failure()
+        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6.0.0
+        with:
+          name: playwright-report-${{ github.run_id }}
+          path: |
+            frontend/playwright-report/
+            frontend/test-results/
+          if-no-files-found: ignore
+          retention-days: 7

.gitignore

@@ -96,6 +96,11 @@ frontend/dist/
 frontend/coverage/
 frontend/node_modules/
 
+# Frontend Playwright artefacts — generated per run, not committed
+frontend/playwright-report/
+frontend/test-results/
+frontend/tests-e2e/.cache/
+
 # Temporary files
 tmp/