feat(release): add workflow for creating release tags and update CHANGELOG.md

CHANGELOG.md

@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Fixed
+
+- Removed a leftover `composer dump-env prod` call in the prod Docker build stage — the command doesn't exist in this project's Composer setup and broke every image build
+
 ## [0.2.0] - 2026-07-12
 
 ### Added