- Implement `max_file_size_mb` to restrict files for scanning based on size.
- Refactor `high_only` handling to modify `min_severity` in `Config`.
- Update `ScannerConfig` to use `Option<u64>` for optional size limits.
- Remove redundant `high_only` parameter from `scan::handle` function.
- Improve batch processing in `walk` for efficient file scanning.
- Standardized formatting across key functions in `project.rs`.
- Updated `index::handle` and `build_index` to incorporate the `config` parameter.
- Improved index-building logic to include project details and enhanced issue tracking.
- Replaced variable names like `files` with `paths` for clarity in `scan.rs`.
- Introduced `walk.rs` as a parallel directory walker for search operations.
- Implemented basic index handling in `commands/index.rs`.
- Created `utils/config.rs` for configuration management with placeholders for future enhancements.
