Queue workers
Background render processing
Cron/CLI worker scripts claim pending jobs, run Gemini pipeline, save assets, deduct credits, and mark completed/failed.
Implemented Verified from source System
In one sentence
Workers move jobs pending → processing → completed/failed, performing analysis, prompting, imaging, storage, and credit deduction.
Current best-evidence worker
arcana.queue.processor.cron.parallel.v3.dynamicstyle.php combines row locking, parallel Gemini calls, dynamic/static styles, watermark flag handling, multi-attempt image fallback, notifications, and image_style persistence.
Uncertain: which script production cron actually invokes — no schedule file found in the repository.