- Update version to 2.0.0-beta.7 in package.json, pyproject.toml, README.md
- Add audit rules and prompt templates to core features in README
- Remove 'custom rules' from roadmap (now implemented)
- Add comprehensive documentation for audit rules configuration
- Add complete system prompt examples and architecture explanation
- Document all built-in rule sets (OWASP Top 10, Code Quality, Performance)
- Document all built-in prompt templates with full content
- Add prompt composition structure diagram