### Changes:
- Enhanced `BrainyData` class to support `HNSWIndexOptimized` alongside the standard HNSW index.
- Added a new configuration parameter `hnswOptimized` for enabling optimized indexing.
- Created utility methods for handling optimized index-specific functionalities such as memory usage tracking and disk-based index management.
- Updated vector addition, retrieval, and management methods to accommodate both standard and optimized indices.
- Introduced support for using pre-defined IDs during vector and relationship creation.
- Standardized metadata handling for error resilience and embedding integrations.
- Implemented a `getAllNouns` method to retrieve all indexed data.
- Added validation for vector dimensions during relationship creation to ensure consistency.
- Refactored method signatures to improve readability and alignment.
### Purpose:
Improved the BrainyData API to support optimized indexing functionality powered by `HNSWIndexOptimized`, enhancing scalability for large datasets while maintaining backward compatibility. Elevated overall code structure and usability.