Add delayed exit after CodeceptJS teardown to prevent process hanging

- Added 1-second delayed process.exit() in lib/command/run.js after teardown
- This ensures CodeceptJS acceptance tests exit cleanly after printing stats
- Fixes process hanging issue where 'OK | X passed, Y skipped' was printed but process wouldn't exit
- Can be disabled with CODECEPT_DISABLE_AUTO_EXIT=1 environment variable

Author: kobenguyent

lib/command/run.js

@@ -42,5 +42,13 @@ export default async function (test, options) {
     process.exitCode = 1
   } finally {
     await codecept.teardown()
+
+    // Schedule a delayed exit to prevent process hanging due to helper event loops (e.g., Playwright)
+    // Wait 1 second to allow final cleanup and output to complete
+    if (!process.env.CODECEPT_DISABLE_AUTO_EXIT) {
+      setTimeout(() => {
+        process.exit(process.exitCode || 0)
+      }, 1000).unref()
+    }
   }
 }