<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Added a mutation to request/apply a subscription by transaction ID
(client mutation and server operation), returning subscription details.
* **Bug Fixes / Improvements**
* More robust external subscription sync with safer conflict detection,
optional short-lived confirmation, improved parsing and error logging.
* **Chores**
* Standardized time constants for clarity.
* **Tests**
* Updated subscription test data (expiration date) to reflect new
lifecycle expectations.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
- **New Features**
- Safer, consistent file downloads with automatic attachment headers and
filenames.
- Smarter MIME detection for uploads (avatars, workspace blobs, Copilot
files/transcripts).
- Sensible default buffer limit when reading uploads.
- **Bug Fixes**
- Prevents risky content from rendering inline by forcing downloads and
adding no‑sniff protection.
- More accurate content types when original metadata is missing or
incorrect.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
fix AF-2748
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Improved mail sending job with adaptive retry delays based on elapsed
time, enhancing reliability of email delivery.
* **Chores**
* Updated job payload to include a start time for better retry
management.
* Added an internal delay utility to support asynchronous pause in
processes.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
close AF-2705
#### PR Dependency Tree
* **PR #12984** 👈
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**
* The Apple OAuth provider is now available only for clients version
0.22.0 or higher.
* Client version detection has been improved by extracting version
information from request headers.
* **Bug Fixes**
* Ensured that the Apple OAuth provider is hidden for clients below
version 0.22.0.
* **Tests**
* Added comprehensive end-to-end and utility tests for OAuth provider
selection and client version extraction.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
close CLOUD-227
close CLOUD-230
#### PR Dependency Tree
* **PR #12761** 👈
* **PR #12924**
* **PR #12925**
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**
* Introduced a comprehensive commenting system, enabling users to
create, update, resolve, and delete comments and replies on documents.
* Added support for uploading attachments to comments, with clear error
messaging if size limits are exceeded.
* Implemented role-based permissions for comment actions, including a
new "Commenter" role.
* Enabled paginated listing and change tracking of comments and replies
via GraphQL queries.
* Provided full localization and error handling for comment-related
actions.
* **Bug Fixes**
* Improved uniqueness handling when fetching user data for comments and
replies.
* **Documentation**
* Extended GraphQL schema and frontend localization to document and
support new comment features.
* **Tests**
* Added extensive backend test suites covering all comment and reply
functionalities, permissions, and attachment uploads.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
- **New Features**
- Introduced support for parsing and converting duration strings (e.g., "1h30m") into milliseconds and seconds.
- Added utility methods to handle a wide range of time units and their combinations.
- Added functions to calculate dates offset before or after a given date by specified durations.
- **Tests**
- Implemented comprehensive automated tests to ensure accurate parsing and conversion of duration strings.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
DarkSky
