<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit
* **New Features**
* Introduced support for comment attachments, allowing users to add,
view, and manage attachments linked to comments within documents.
* **Tests**
* Added comprehensive tests to ensure correct behavior for adding,
updating, deleting, listing, and retrieving comment attachments.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
#### PR Dependency Tree
* **PR #12909** 👈
* **PR #12911**
* **PR #12761**
* **PR #12924**
* **PR #12925**
This tree was auto-generated by
[Charcoal](https://github.com/danerwilliams/charcoal)
