- Apply cargo fmt to ensure consistent code formatting across CLI modules
- Fix trailing whitespace in documentation comments
- Optimize comment formatting and indentation
- All clippy checks pass with no warnings
- Documentation generates cleanly with strict nightly flags
- All tests continue to pass after formatting changes
- Add extensive module-level documentation explaining rule-based message management
- Document complete rule configuration and execution workflow
- Include comprehensive TOML configuration examples with retention periods
- Add detailed safety features and error handling documentation
- Document subcommand architecture and delegation patterns
- Include practical usage examples for configuration and execution
- Add comprehensive method documentation with operation flows and side effects
- Document automatic configuration fallback and validation systems
