feat(image): add image upload functionality

- Created FileUploadResponse DTO for image upload responses
- Implemented ImageController with upload endpoint
- Defined ImageService interface for image operations
- Added ImageServiceImpl with placeholder upload logic
- Updated pom.xml to include chaos_api_domain dependency

chaos_api_service/src/main/java/cn/nopj/chaos_api/service/impl/ImageServiceImpl.java

@@ -0,0 +1,17 @@
+package cn.nopj.chaos_api.service.impl;
+
+import cn.nopj.chaos_api.service.ImageService;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Service;
+
+import java.io.InputStream;
+
+@Slf4j
+@Service
+public class ImageServiceImpl implements ImageService {
+    @Override
+    public String uploadImage(String fileName, InputStream content) {
+        //todo 完成上传图片功能
+        return "";
+    }
+}