[Improvement]Web Search Integration: Performance, Stability, and Alternatives

[earayu]

We currently use DuckDuckGo for web search. We need to test the rate limits for DuckDuckGo, as high usage could lead to IP blocking or throttling.

We should explore integrating alternative web search providers such as Jina AI API, Bing, or Google.

The primary factors to consider for any web search provider are: rate limiting, stability, performance, and search quality.

[earayu]

I've add jina as the default choice