- Updated the Config struct to include `omitempty` for optional fields in JSON and YAML serialization, ensuring that empty values are omitted from the output.
- Enhanced the Provider struct and related configurations to maintain consistency in field definitions and improve clarity in the codebase.
- Introduced Uploader field in the Config struct to allow optional file uploader configuration.
- Implemented logic to set a default uploader value if not explicitly configured during JSON unmarshalling.
- Added global configuration support for PDF and FFmpeg in the Knowledge Base, allowing converters to utilize default settings.
- Introduced functions to set and get global configurations for PDF and FFmpeg, enhancing flexibility in converter options.
- Updated OCR and Video converters to leverage global settings, with tests ensuring proper functionality and overrides.
- Enhanced test cases to validate the use of global configurations and property overrides, improving test coverage and reliability.
- Deleted config.go, config_test.go, types.go, and related test files to streamline the codebase and remove deprecated components.
- Refactored Knowledge Base loading logic to utilize updated configuration structures, enhancing clarity and maintainability.
- Updated references in kb.go to align with the new configuration types, ensuring compatibility with the latest changes.
