Kafka Integration Testing Purpose Write production-grade integration tests for Kafka producers and consumers using testcontainers. Covers setting up temporary test brokers, testing producer/consumer workflows, verifying message ordering guarantees, testing error scenarios, and validating delivery semantics without mocking external services. When to Use This Skill Use when testing Kafka producer/consumer workflows end-to-end with "test Kafka integration", "verify message ordering", "test Kafka roundtrip", or "validate exactly-once semantics". Do NOT use for unit testing with mocked Kafka (use…