Add Changelog Entry

Generate and maintain project changelog: $ARGUMENTS

Current State

• Existing changelog: @CHANGELOG.md (if exists)
• Recent commits: !git log --oneline -10
• Current version: !git describe --tags --abbrev=0 2>/dev/null || echo "No tags found"
• Package version: @package.json (if exists)

Task

1. Changelog Format (Keep a Changelog)

   # Changelog
   
   All notable changes to this project will be documented in this file.
   
   The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
   and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
   
   ## [Unreleased]
   ### Added
   - New features
   
   ### Changed
   - Changes in existing functionality
   
   ### Deprecated
   - Soon-to-be removed features
   
   ### Removed
   - Removed features
   
   ### Fixed
   - Bug fixes
   
   ### Security
   - Security improvements
   

2. Version Entries

   ## [1.2.3] - 2024-01-15
   ### Added
   - User authentication system
   - Dark mode toggle
   - Export functionality for reports
   
   ### Fixed
   - Memory leak in background tasks
   - Timezone handling issues
   

3. Automation Tools

   # Generate changelog from git commits
   npm install -D conventional-changelog-cli
   npx conventional-changelog -p angular -i CHANGELOG.md -s
   
   # Auto-changelog
   npm install -D auto-changelog
   npx auto-changelog
   

4. Commit Convention

   # Conventional commits for auto-generation
   feat: add user authentication
   fix: resolve memory leak in tasks
   docs: update API documentation
   style: format code with prettier
   refactor: reorganize user service
   test: add unit tests for auth
   chore: update dependencies
   

5. Integration with Releases

   • Update changelog before each release
   • Include in release notes
   • Link to GitHub releases
   • Tag versions consistently

Remember to keep entries clear, categorized, and focused on user-facing changes.