After PlaywrightCrawler.run() resolves, Crawlee's internal task loop
schedules one final _isTaskReadyFunction call that tries to read a
request queue .json file already cleaned up during processing. This
ENOENT fires as an unhandledRejection and calls process.exit(1),
aborting Phase 2 before prices are written to the database.
Added a targeted unhandledRejection handler in the require.main block
that swallows ENOENT errors from request_queues paths (benign Crawlee
cleanup race) while re-raising all other rejections.