CLAP-310 Refactor: response 매핑 application 레이어로 옮기기

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- 관련: #380

src/main/java/clap/server/adapter/inbound/web/admin/FindDepartmentController.java

@@ -1,12 +1,12 @@
 package clap.server.adapter.inbound.web.admin;
 
 import clap.server.adapter.inbound.web.dto.admin.response.FindAllDepartmentsResponse;
-import clap.server.application.mapper.DepartmentResponseMapper;
 import clap.server.application.port.inbound.admin.FindAllDepartmentsUsecase;
 import clap.server.common.annotation.architecture.WebAdapter;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
 import lombok.RequiredArgsConstructor;
+import org.springframework.http.ResponseEntity;
 import org.springframework.security.access.annotation.Secured;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
@@ -23,10 +23,7 @@ public class FindDepartmentController {
     @Operation(summary = "부서 조회 API")
     @Secured("ROLE_ADMIN")
     @GetMapping("/departments")
-    public List<FindAllDepartmentsResponse> findAllDepartments() {
-        return findAllDepartmentsUsecase.findAllDepartments()
-                .stream()
-                .map(DepartmentResponseMapper::toFindAllDepartmentsResponse)
-                .toList();
+    public ResponseEntity<List<FindAllDepartmentsResponse>> findAllDepartments() {
+        return ResponseEntity.ok(findAllDepartmentsUsecase.findAllDepartments());
     }
 }

src/main/java/clap/server/application/port/inbound/admin/FindAllDepartmentsUsecase.java

@@ -1,9 +1,9 @@
 package clap.server.application.port.inbound.admin;
 
-import clap.server.domain.model.member.Department;
+import clap.server.adapter.inbound.web.dto.admin.response.FindAllDepartmentsResponse;
 
 import java.util.List;
 
 public interface FindAllDepartmentsUsecase {
-    List<Department> findAllDepartments();
+    List<FindAllDepartmentsResponse> findAllDepartments();
 }

src/main/java/clap/server/application/service/admin/FindAllDepartmentsService.java

@@ -1,9 +1,10 @@
 package clap.server.application.service.admin;
 
+import clap.server.adapter.inbound.web.dto.admin.response.FindAllDepartmentsResponse;
+import clap.server.application.mapper.DepartmentResponseMapper;
 import clap.server.application.port.inbound.admin.FindAllDepartmentsUsecase;
 import clap.server.application.port.outbound.member.LoadDepartmentPort;
 import clap.server.common.annotation.architecture.ApplicationService;
-import clap.server.domain.model.member.Department;
 import lombok.RequiredArgsConstructor;
 
 import java.util.List;
@@ -14,8 +15,10 @@ public class FindAllDepartmentsService implements FindAllDepartmentsUsecase {
     private final LoadDepartmentPort loadDepartmentPort;
 
     @Override
-    public List<Department> findAllDepartments() {
-        return loadDepartmentPort.findActiveDepartments();
+    public List<FindAllDepartmentsResponse> findAllDepartments() {
+        return loadDepartmentPort.findActiveDepartments().stream()
+                .map(DepartmentResponseMapper::toFindAllDepartmentsResponse)
+                .toList();
     }
 
 }