chore: add changelog entry for permission sync classification

Author: brendan-kellam

CHANGELOG.md

@@ -15,6 +15,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed
 - [EE] Preserved cached repository permissions when OAuth token refresh fails because of a transient code host outage. [#1481](https://github.com/sourcebot-dev/sourcebot/pull/1481)
+- [EE] Classified code host permission sync failures by provider context before clearing cached repository permissions. [#1482](https://github.com/sourcebot-dev/sourcebot/pull/1482)
 
 ## [5.1.3] - 2026-07-20