refactor: flatten infrastructure packages

src/main/java/com/label/config/RedisConfig.java

@@ -0,0 +1,24 @@
+package com.label.config;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.data.redis.connection.RedisConnectionFactory;
+import org.springframework.data.redis.core.RedisTemplate;
+import org.springframework.data.redis.serializer.StringRedisSerializer;
+
+@Configuration
+public class RedisConfig {
+
+    @Bean
+    public RedisTemplate<String, String> redisTemplate(RedisConnectionFactory connectionFactory) {
+        RedisTemplate<String, String> template = new RedisTemplate<>();
+        template.setConnectionFactory(connectionFactory);
+        StringRedisSerializer serializer = new StringRedisSerializer();
+        template.setKeySerializer(serializer);
+        template.setValueSerializer(serializer);
+        template.setHashKeySerializer(serializer);
+        template.setHashValueSerializer(serializer);
+        template.afterPropertiesSet();
+        return template;
+    }
+}