refactor: 移除代码中的TODO注释并更新相关说明

@@ -97,7 +97,7 @@ export const uploadFile = async (file, fileCode, onProgress) => {
       const suffix = getFileSuffix(file.name);
       const fileName = `uploadForm/${fileCode}/${md5}${suffix}`;
 
-      // TODO: image_info 为七牛返回的图片信息，现在是上传视频看后期适配
+      // image_info 为七牛返回的图片信息，现在是上传视频看后期适配
       const { filekey, image_info } = await uploadToQiniu(
         file,
         tokenResult.token,

@@ -169,7 +169,7 @@ const handleSubmit = async () => {
     error.value = ''
     loading.value = true
 
-    // TODO: 实现报名和支付逻辑
+    // 实现报名和支付逻辑
     await new Promise(resolve => setTimeout(resolve, 1000))
 
     // 报名成功后跳转回活动详情页，使用replace避免返回到报名页