chore: update changelog and bump version to v1.6.0

Author: thomas-vilte

CHANGELOG.md

@@ -2,6 +2,21 @@
 
 All notable changes to this project will be documented in this file.
 
+## [v1.6.0]
+
+[v1.6.0]: https://github.com/thomas-vilte/matecommit/compare/v1.5.0...v1.6.0
+
+In this release, we focused on giving you more control over your environment with repository-local configurations and deeper integration with AI and project management tools. We also introduced comprehensive real-time feedback and cost monitoring to make your workflow more transparent and efficient.
+
+### ✨ Highlights
+
+- We introduced repository-local configurations and smarter Git fallbacks, allowing you to tailor settings like language and emoji usage specifically for each project.
+- We added real-time build progress and a new 'doctor' diagnostic tool to help you troubleshoot environment issues instantly.
+- We expanded our ecosystem with new AI, Jira, and GitHub modules, streamlining how you interact with external platforms directly from the CLI.
+- We implemented a comprehensive stats dashboard, including cost breakdowns, forecasts, and cache usage, so you can monitor your resource consumption at a glance.
+- We improved safety and DX with a new dry-run mode, enhanced error handling, and automatic version update notifications.
+- We overhauled our documentation and internationalization templates to provide a more consistent experience across different languages (#67).
+
 ## [v1.6.0] - 2025-12-29
 
 [v1.6.0]: https://github.com/thomas-vilte/matecommit/compare/v1.5.0...v1.6.0