Add Playwright job summary to CI

Generates a markdown summary table in GitHub Actions showing
passed/failed tests with timing per test. Uses the JSON reporter
to output results, then a Node script to format as markdown
and append to $GITHUB_STEP_SUMMARY.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.github/workflows/ci.yml

@@ -180,6 +180,35 @@ jobs:
         env:
           BROUTER_URL: http://localhost:17777
 
+      - name: Playwright job summary
+        if: ${{ !cancelled() }}
+        run: |
+          if [ -f playwright-results.json ]; then
+            node -e "
+              const r = require('./playwright-results.json');
+              const total = r.suites.reduce((n, s) => n + s.specs.length, 0);
+              const passed = r.suites.reduce((n, s) => n + s.specs.filter(t => t.ok).length, 0);
+              const failed = total - passed;
+              const dur = (r.stats.duration / 1000).toFixed(1);
+              let md = '## Playwright E2E Results\n\n';
+              md += '| Status | Count |\n|--------|-------|\n';
+              md += '| :white_check_mark: Passed | ${passed} |\n';
+              if (failed > 0) md += '| :x: Failed | ${failed} |\n';
+              md += '| Total | ${total} |\n';
+              md += '| Duration | ${dur}s |\n\n';
+              for (const suite of r.suites) {
+                md += '### ' + suite.title + '\n\n';
+                for (const spec of suite.specs) {
+                  const icon = spec.ok ? ':white_check_mark:' : ':x:';
+                  const time = spec.tests?.[0]?.results?.[0]?.duration;
+                  md += '- ' + icon + ' ' + spec.title + (time ? ' (' + time + 'ms)' : '') + '\n';
+                }
+                md += '\n';
+              }
+              require('fs').appendFileSync(process.env.GITHUB_STEP_SUMMARY, md);
+            "
+          fi
+
       - uses: actions/upload-artifact@v7
         if: ${{ !cancelled() }}
         with: