chore: finalize 0.2.0 changelog

Author: jack-arturo

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).
 
-## [0.2.0] - Unreleased
+## [0.2.0] - 2026-03-23
 
 ### Added