Encore Pub/Sub Instructions Pub/Sub is for asynchronous messaging between services. Producers publish events to a ; consumers attach s to react. Resources must be declared at package level — never inside functions. Topics Publishing Subscriptions Message Attributes Use for fields that should be treated as message attributes (for filtering/ordering): Topic References Pass topic access to other code while maintaining static analysis: Delivery Guarantees - (default): may deliver duplicates → handlers must be idempotent. - : stricter, capped throughput (AWS 300 msg/s/topic, GCP 3000+ msg/s/region…