Refresh README/docs for the current stack, add a security policy, note the external-PR pause, and remove dead config and workflows.
Add a new BullMQ/Redis-backed job provider as an alternative to the existing Inngest and Local providers. Includes Bull Board UI for job monitoring at /api/jobs/board (admin-only in production, open in dev).
Co-authored-by: Catalin Pit <catalinpit@gmail.com>