docs: update changelog with notification dismiss fix

Author: Tinitto

CHANGELOG.md

@@ -7,6 +7,10 @@ and this project follows versions of format `{year}.{month}.{patch_number}`.
 
 ## [Unreleased]
 
+### Fixed
+
+- `qpi-ui`: Fixed an issue in the admin dashboard where dismissed system notifications reappeared on page refresh. Dismissals are now correctly persisted via proxy user API requests.
+
 ## [0.0.33] - 2026-06-27
 
 ### Added