fix(server): add user id to comment-attachment model (#13113)

close AF-2723



#### PR Dependency Tree


* **PR #13113** 👈

This tree was auto-generated by
[Charcoal](https://github.com/danerwilliams/charcoal)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

* **New Features**
* Comment attachments now track and display the user who uploaded them.

* **Tests**
* Updated tests to verify that the uploader’s information is correctly
stored and retrieved with comment attachments.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

packages/backend/server/src/__tests__/e2e/workspace/controller.spec.ts

@@ -73,7 +73,8 @@ e2e('should get comment attachment body', async t => {
     docId,
     key,
     'test.txt',
-    Buffer.from('test')
+    Buffer.from('test'),
+    owner.id
   );
 
   const res = await app.GET(