식품 목록 조회 API 응답 형식 수정 (#33)

* refactor: json 프로퍼티명 수정

* test: 직렬화 여부 확인

backend/src/main/java/zipgo/controller/dto/GetPetFoodsResponse.java

@@ -1,9 +1,10 @@
 package zipgo.controller.dto;
 
+import com.fasterxml.jackson.annotation.JsonProperty;
 import java.util.List;
 import zipgo.domain.PetFood;
 
-public record GetPetFoodsResponse(List<PetFoodResponse> petFoods) {
+public record GetPetFoodsResponse(@JsonProperty(value = "foodList") List<PetFoodResponse> petFoods) {
 
     public static GetPetFoodsResponse from(List<PetFood> petFoods) {
         List<PetFoodResponse> petFoodResponses = petFoods.stream()

backend/src/test/java/zipgo/acceptance/PetFoodAcceptanceTest.java

@@ -6,8 +6,10 @@
 import io.restassured.http.ContentType;
 import io.restassured.response.ExtractableResponse;
 import io.restassured.response.Response;
+import java.util.List;
 import org.junit.jupiter.api.Test;
 import zipgo.controller.dto.GetPetFoodsResponse;
+import zipgo.controller.dto.PetFoodResponse;
 
 public class PetFoodAcceptanceTest extends AcceptanceTest {
 
@@ -23,6 +25,19 @@ public class PetFoodAcceptanceTest extends AcceptanceTest {
         assertThat(data.petFoods()).isNotEmpty();
     }
 
+    @Test
+    void petFoods를_foodList로_직렬화한다() {
+        //given
+        ExtractableResponse<Response> response = given().contentType(ContentType.JSON)
+                .when().get("/pet-foods")
+                .then().extract();
+
+        //when
+        //then
+        List<PetFoodResponse> foodList = response.jsonPath().getList("foodList", PetFoodResponse.class);
+        assertThat(foodList).isNotEmpty();
+    }
+
     @Test
     void 키워드가_다이어트인_식품_조회_API() {
         ExtractableResponse<Response> response = given().contentType(ContentType.JSON)