DAR-106: enable local Kafka publishing and add Kafka only producer test (!16) · Requêtes de fusion · marketing confort / darvest / darvest-investor-profile-kyc-service

Enabled Kafka workflow publisher in local profile (kyc.events.kafka.enabled=true).

Added local Kafka infra (Zookeeper + Kafka) in docker-compose, broker exposed on localhost:9092.
Added Kafka-only test verifying KYC APPROVED publishes to:
- kyc.approved
- kyc-events

DAR-106: enable local Kafka publishing and add Kafka only producer test