Updated CHANGELOG for 0.3.0 release

CHANGELOG.md

@@ -5,7 +5,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [Unreleased]
+## [0.3.0]
 
 ## Added
 
@@ -21,6 +21,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - backend: `utc_now` helper function
 - backend: `pwdlib[argon2]`, `pytest` (`pytest-cov`, `pytest-xdist`), `limits`, `httpx`, `email-validator` pacakges
 - frontend: Re-initialized with `vite` template, setup `@tanstack/router` & `shadcn` components.
+- frontend: Added Login & Register page, added basic authentication check with redirect
+- frontend: Added Zustand state management, basic login & session API functions with `true-myth` types.
+- frontend: Added `zustand`, `true-myth`, `@tanstack/router`, `clsx`, `tailwind-merge` packages
 
 ## Changed