feat(kafka): 添加手动提交模式支持以增强消息处理可靠性

- 在 KafkaConfig 中新增 manualCommitKafkaListenerContainerFactory 配置
- 启用手动提交模式并设置 AckMode 为 MANUAL_IMMEDIATE
- 修改 FaceProcessingKafkaService 使用新的容器工厂- 添加 Acknowledgment 参数以控制消息提交时机
-仅在人脸样本保存和识别全部成功后才手动确认消息
- 处理失败时不再调用 ack.acknowledge()使消息可重新消费
- 更新 processFaceRecognition 方法返回处理结果状态
- 增强异常处理逻辑，确保失败情况下不提交消息

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

@@ -10,6 +10,7 @@ import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.kafka.config.ConcurrentKafkaListenerContainerFactory;
 import org.springframework.kafka.core.*;
+import org.springframework.kafka.listener.ContainerProperties;
 
 import java.util.HashMap;
 import java.util.Map;
@@ -80,4 +81,21 @@ public class KafkaConfig {
         factory.setConsumerFactory(consumerFactory());
         return factory;
     }
+
+    @Bean
+    public ConcurrentKafkaListenerContainerFactory<String, String> manualCommitKafkaListenerContainerFactory() {
+        ConcurrentKafkaListenerContainerFactory<String, String> factory = new ConcurrentKafkaListenerContainerFactory<>();
+
+        Map<String, Object> props = new HashMap<>();
+        props.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, bootstrapServers);
+        props.put(ConsumerConfig.GROUP_ID_CONFIG, consumerGroupId);
+        props.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class);
+        props.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class);
+        props.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, autoOffsetReset);
+        props.put(ConsumerConfig.ENABLE_AUTO_COMMIT_CONFIG, false);
+
+        factory.setConsumerFactory(new DefaultKafkaConsumerFactory<>(props));
+        factory.getContainerProperties().setAckMode(ContainerProperties.AckMode.MANUAL_IMMEDIATE);
+        return factory;
+    }
 }