Release v2.29.0 - Polish Nursing recipe (#420)

* Create recipe for Polish Nursing book

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-authored-by: Claude <[email protected]>

Author: OpenStaxClaude

CHANGELOG.md

@@ -6,6 +6,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [v2.29.0] - 2025-09-16
+
 * Create recipe for Polish Nursing book
 
 ## [v2.28.0] - 2025-09-09