feat(integration): 添加 ZT-Message Kafka 生产者集成

- 新增 ZtMessage DTO 类用于消息体
- 实现 ZtMessageProducerService 生产者服务
- 添加示例演示如何发送消息
- 更新配置文件和文档以支持新功能

src/main/java/com/ycwl/basic/config/KafkaConfig.java

@@ -42,6 +42,12 @@ public class KafkaConfig {
     @Value("${kafka.producer.buffer-memory:33554432}")
     private Integer bufferMemory;
 
+    @Value("${kafka.producer.enable-idempotence:true}")
+    private boolean enableIdempotence;
+
+    @Value("${kafka.producer.compression-type:snappy}")
+    private String compressionType;
+
     @Bean
     public ProducerFactory<String, String> producerFactory() {
         Map<String, Object> configProps = new HashMap<>();
@@ -53,6 +59,8 @@ public class KafkaConfig {
         configProps.put(ProducerConfig.BATCH_SIZE_CONFIG, batchSize);
         configProps.put(ProducerConfig.LINGER_MS_CONFIG, lingerMs);
         configProps.put(ProducerConfig.BUFFER_MEMORY_CONFIG, bufferMemory);
+        configProps.put(ProducerConfig.ENABLE_IDEMPOTENCE_CONFIG, enableIdempotence);
+        configProps.put(ProducerConfig.COMPRESSION_TYPE_CONFIG, compressionType);
         
         return new DefaultKafkaProducerFactory<>(configProps);
     }