feat(release): implement conventional commits approach

[bhouston]

Implement Conventional Commits Approach

This PR implements option 2 from issue #140, replacing the current changesets approach with conventional commits and semantic-release.

Changes

• Add commitlint to enforce conventional commit format
• Replace changesets with semantic-release for automated versioning
• Set up GitHub Actions workflow for automated releases
• Update documentation with new release process
• Add commit message template
• Configure Git to use commit message template
• Update CONTRIBUTING.md with detailed conventional commits guidelines
• Remove changesets directory and related scripts

Benefits

• Automated versioning based on commit types
• Standardized commit format for better readability and consistency
• Automated changelog generation from commit messages
• Simplified release process with GitHub Actions
• Better integration with GitHub (automatic issue linking and closing)

Testing

The implementation includes:

• Commitlint configuration to enforce conventional commits
• Husky hook for commit message validation
• Semantic-release configuration for automated releases
• GitHub Actions workflow for CI/CD

Documentation

• Updated README.md with release process information
• Updated CONTRIBUTING.md with detailed conventional commits guidelines
• Added commit message template with examples and guidelines

Closes #140

[github-actions]

🎉 This PR is included in version 0.7.0 🎉

The release is available on GitHub release

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