- Added DuckDuckGo as a new web search provider in the configuration.
- Removed deprecated web search providers (Baidu, Bing, Bocha, Exa, Google, Kuaisou, Searxng, Tavily, Zhipu) to streamline the codebase.
- Enhanced knowledge base management by introducing temporary knowledge base handling in the session service.
- Updated the web search service to support RAG-based compression for improved search result processing.
- Refactored session and knowledge service interfaces to accommodate new functionalities.
wizardchen