feat(changelog): always update changelog even without version bump

[gsinghjay]

Description

This PR enhances our release documentation and improves our changelog automation by ensuring all changes are tracked, even those that don't trigger version bumps.

Added

• Comprehensive documentation for:
  • Semantic Versioning principles and rules
  • Keep a Changelog guidelines
  • Python Semantic Release configuration
• New feature: Always update changelog even without version bumps

  [tool.python_semantic_release.changelog]
  always_update = true

Changed

• Updated author information in pyproject.toml
• Enhanced documentation structure and readability
• Improved changelog configuration to capture all changes

Documentation Updates

• Added version bumping rules with commit type mappings
• Added changelog guidelines with practical examples
• Detailed explanation of automated release process
• Added configuration documentation with inline comments
• Added explanation of changelog automation features

Technical Details

The always_update = true configuration ensures:

• All commits are tracked in CHANGELOG.md
• Changes appear in "Unreleased" section even without version bump
• Complete history of all changes is maintained
• Non-versioning commits (docs, chore) are properly documented

Checklist

• Documentation is clear and comprehensive
• Configuration examples are accurate and tested
• Commit messages follow conventional commits
• Changelog configuration is properly set up
• All changes are documented in README.md

Related Documentation

• Python Semantic Release
• Keep a Changelog
• Semantic Versioning