- Implemented Upstash Vector as a cloud-based storage solution for document chunks, replacing the local LanceDB option.
- Added auto-detection of storage mode based on environment variables for seamless integration.
- Updated the chat API to utilize the new retrieval mechanism, enhancing response accuracy and performance.
- Enhanced README with setup instructions for Upstash and updated environment variable requirements.
- Introduced new scripts and configurations for managing the vector index and API interactions.
