awstesting

backend/src/data/userService.js

-import User from '../models/User.js';
+import User from '../models/user.js';
 
 const userService = {
   async createUser(userData) {
@@ -39,4 +39,4 @@ const userService = {
   }
 };
 
-export default userService;
+export default userService;
\ No newline at end of file

backend/src/models/article.js

 import mongoose from 'mongoose';
-import UserSchema from './User.js';
+import UserSchema from './user.js';
 
 const CommentSchema = new mongoose.Schema({
   content: {
@@ -62,4 +62,4 @@ const ArticleSchema = new mongoose.Schema({
 
 const Article = mongoose.model("Article", ArticleSchema);
 
-export default Article;
+export default Article;
\ No newline at end of file