ci: harden P0 workflow checks (#1077)

.github/workflows/playwright.yml

@@ -1,6 +1,9 @@
 name: Playwright
 
 on:
+  push:
+    branches:
+      - main
   pull_request:
     branches:
       - main
@@ -8,6 +11,10 @@ on:
 permissions:
   contents: read
 
+concurrency:
+  group: playwright-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: ${{ github.event_name == 'pull_request' }}
+
 jobs:
   e2e:
     runs-on: ubuntu-latest
@@ -19,10 +26,14 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: 23
+          node-version: 24
+          cache: npm
+          cache-dependency-path: package-lock.json
 
       - name: Install dependencies
-        run: npm install
+        run: |
+          npm ci --ignore-scripts
+          npm rebuild node-pty
 
       - name: Install Playwright browsers
         run: npx playwright install --with-deps chromium
@@ -35,5 +46,7 @@ jobs:
         uses: actions/upload-artifact@v4
         with:
           name: playwright-report
-          path: playwright-report/
+          path: |
+            playwright-report/
+            test-results/
           retention-days: 7