async-jobs

# Async Jobs Patterns for background task processing with Celery, ARQ, and Redis. Covers task queues, canvas workflows, scheduling, retry strategies, rate limiting, and production monitoring. Each category has individual rule files in `references/` loaded on-demand. ## Quick Reference | Category | Rules | Impact | When to Use | |----------|-------|--------|-------------| | [Configuration](#configuration) | celery-config | HIGH | Celery app setup, broker, serialization, worker tuning | | [Task Routing](#task-routing) | task-routing | HIGH | Priority queues, multi-queue workers, dynamic routing | | [Canvas Workflows](#canvas-workflows) | canvas-workflows | HIGH | Chain, group, chord, nested workflows | | [Retry Strategies](#retry-strategies) | retry-strategies | HIGH | Exponential backoff, idempotency, dead letter queues | | [Scheduling](#scheduling) | scheduled-tasks | MEDIUM | Celery Beat, crontab, database-backed schedules | | [Monitoring](#monitoring) | monitoring-health | MEDIUM | Flower, custom events, health checks, metrics | | [Result Backends](#result-backends) | result-backends | MEDIUM | Redis results, custom states, progress tracking | | [ARQ Patterns](#arq-patterns) | arq-patterns | MEDIUM | Async Redis Queue for FastAPI, lightweight jobs | | [Temporal Workflows](#temporal-workflows) | temporal-workflows | HIGH | Durable workflow definitions, sagas, signals, queries | | [Temporal Activities](#temporal-activities) | temporal-activities | HIGH | Activity patterns,...