- Introduced `CliOutputUnit` and `IOutputParser` interfaces for unified output processing.
- Implemented `PlainTextParser` and `JsonLinesParser` for parsing raw CLI output into structured units.
- Updated `executeCliTool` to utilize output parsers and handle structured output.
- Added `flattenOutputUnits` utility for extracting clean output from structured data.
- Enhanced `ConversationTurn` and `ExecutionRecord` interfaces to include structured output.
- Created comprehensive documentation for CLI Output Converter usage and integration.
- Improved error handling and type mapping for various output formats.
