Add Playwright report artifacts to CI and enable manual trigger

- Upload playwright-report and test-results artifacts after e2e tests
- Add workflow_dispatch for manual workflow triggering
- Temporarily enable always-on traces/videos/screenshots for testing
- Fix ESM imports in playwright.config.mts

.github/workflows/tests.yml

@@ -1,6 +1,7 @@
 name: Tests
 
 on:
+  workflow_dispatch: # Manual trigger for testing
   push:
     branches:
       - '**'

playwright.config.mts

@@ -22,8 +22,9 @@ export default defineConfig({
     timeout: 10000,
   },
   use: {
-    trace: 'on-first-retry',
-    video: 'on-first-retry',
+    trace: 'on', // TODO: revert to 'on-first-retry' after verifying GitHub Actions report
+    video: 'on', // TODO: revert to 'on-first-retry' after verifying GitHub Actions report
+    screenshot: 'on', // TODO: remove after verifying GitHub Actions report
   },
   projects: [
     {