Merge branch 'k-kobayashi' of https://gitea.it-college.co.jp/2026_09_5H_Spring_KIZAKI/Monegement into n-kawahito

# Conflicts:
#	src/main/java/com/example/demo/app/domain/service/impl/CourseServiceImpl.java

src/main/java/com/example/demo/app/domain/service/impl/CourseServiceImpl.java

@@ -0,0 +1,25 @@
+package com.example.demo.app.domain.service.impl;
+
+import java.util.List;
+
+import org.springframework.stereotype.Service;
+
+import com.example.demo.app.domain.model.CourseModel;
+import com.example.demo.app.domain.service.CourseService;
+import com.example.demo.app.infra.entity.CourseEntity;
+import com.example.demo.app.infra.repository.CourseRepository;
+
+import lombok.RequiredArgsConstructor;
+
+@Service
+@RequiredArgsConstructor
+public class CourseServiceImpl implements CourseService {
+
+	private final CourseRepository courseRepository;
+	
+	public List<CourseModel> findAll(){
+		
+		return CourseEntity.createCourseModelList(courseRepository.findAll());
+	}
+	
+}