Add messaging migration module

[aureamunoz]

Gap

Our skill has no module for migrating messaging code (Kafka, RabbitMQ, JMS). Projects using Spring Kafka (@KafkaListener), Spring AMQP (@RabbitListener), or Spring JMS (@JmsListener) have no migration path.

Proposal

Add a new modules/messaging.md module with a gate condition and add it to the Decision Gate Table.

Gate condition

@KafkaListener, @RabbitListener, @JmsListener, @SendTo, KafkaTemplate, JmsTemplate, or RabbitTemplate found in Java sources.

What it should cover

Spring	Quarkus
@KafkaListener	@Incoming (SmallRye Reactive Messaging)
@RabbitListener	@Incoming (SmallRye Reactive Messaging)
@JmsListener	@Incoming (SmallRye Reactive Messaging)
KafkaTemplate.send()	@Channel Emitter or @Outgoing
JmsTemplate / RabbitTemplate	@Channel Emitter or @Outgoing
spring.kafka.* properties	kafka.* / mp.messaging.* properties

Dependencies

Spring	Quarkus (Full)
spring-kafka	quarkus-smallrye-reactive-messaging-kafka
spring-boot-starter-amqp	quarkus-smallrye-reactive-messaging-amqp
spring-boot-starter-activemq / artemis	quarkus-smallrye-reactive-messaging-jms

Should also add these mappings to references/dependency-map.md and references/annotation-map.md.

Reference

• PR feat: add spring to quarkus skill with validators #37 agent: agents/07-messaging-migration.prompt.md
• PR feat: add spring to quarkus skill with validators #37 validator: MessagingValidator.java