changelog: Update changelog for frontend tests/refactoring PR.

CHANGELOG.md

@@ -7,6 +7,21 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Added
+
+- Frontend Unit Tests: Added comprehensive unit tests for React hooks and Zustand stores, including:
+  - `useLocalStorage` hook tests with localStorage mocking and error handling
+  - `useSmartLogos` hook tests for logo loading and management
+  - `useTablePreferences` hook tests for table settings persistence
+  - `useAuthStore` tests for authentication flow and token management
+  - `useChannelsStore` tests for channel data management
+  - `useUserAgentsStore` tests for user agent CRUD operations
+  - `useUsersStore` tests for user management functionality
+  - `useVODLogosStore` tests for VOD logo operations
+  - `useVideoStore` tests for video player state management
+  - `useWarningsStore` tests for warning suppression functionality
+  - Code refactoring for improved readability and maintainability - Thanks [@nick4810](https://github.com/nick4810)
+
 ### Changed
 
 - Swagger/OpenAPI Migration: Migrated from `drf-yasg` (OpenAPI 2.0) to `drf-spectacular` (OpenAPI 3.0) for API documentation. This provides: