fix: 멀티 데이터 소스 삭제

src/main/java/in/koreatech/payment/KoinPaymentApplication.java

@@ -2,10 +2,25 @@
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.autoconfigure.domain.EntityScan;
 import org.springframework.boot.context.properties.ConfigurationPropertiesScan;
+import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
 
-@SpringBootApplication
 @ConfigurationPropertiesScan
+@SpringBootApplication(
+	scanBasePackages = {
+		"in.koreatech.payment",
+		"in.koreatech.koin"
+	}
+)
+@EnableJpaRepositories(basePackages = {
+	"in.koreatech.payment",
+	"in.koreatech.koin"
+})
+@EntityScan(basePackages = {
+	"in.koreatech.payment",
+	"in.koreatech.koin"
+})
 public class KoinPaymentApplication {
 
 	public static void main(String[] args) {

src/main/java/in/koreatech/payment/dto/request/TemporaryTakeoutPaymentSaveRequest.java

@@ -1,12 +1,16 @@
 package in.koreatech.payment.dto.request;
 
+import static com.fasterxml.jackson.databind.PropertyNamingStrategies.SnakeCaseStrategy;
 import static io.swagger.v3.oas.annotations.media.Schema.RequiredMode.NOT_REQUIRED;
 import static io.swagger.v3.oas.annotations.media.Schema.RequiredMode.REQUIRED;
 
+import com.fasterxml.jackson.databind.annotation.JsonNaming;
+
 import io.swagger.v3.oas.annotations.media.Schema;
 import jakarta.validation.constraints.NotBlank;
 import jakarta.validation.constraints.NotNull;
 
+@JsonNaming(value = SnakeCaseStrategy.class)
 public record TemporaryTakeoutPaymentSaveRequest(
     @Schema(description = "연락처", example = "01012345678", requiredMode = REQUIRED)
     @NotBlank(message = "연락처는 필수 입력사항입니다.")

src/main/java/in/koreatech/payment/service/TossService.java

@@ -137,7 +137,7 @@ public String createTemporaryTakeoutPayment(String accessToken, TemporaryTakeout
         return orderId;
     }
 
-    @Transactional(transactionManager = "koinTransactionManager")
+    @Transactional
     public PaymentConfirmResponse confirmPayment(String accessToken, String paymentKey, String orderId, Integer amount) {
         Integer userId = jwtTokenResolver.getUserId(accessToken);
         User user = userRepository.getById(userId);
@@ -170,7 +170,7 @@ public PaymentConfirmResponse confirmPayment(String accessToken, String paymentK
         return response;
     }
 
-    @Transactional(transactionManager = "koinTransactionManager")
+    @Transactional
     public List<PaymentCancel> cancelPayment(String accessToken, String paymentKey, String cancelReason) {
         Integer userId = jwtTokenResolver.getUserId(accessToken);
         User user = userRepository.getById(userId);