//! Tool implementations for Daedra.
//!
//! Search backends (in fallback order):
//! 1. Serper.dev — Google results via API (needs SERPER_API_KEY)
//! 2. Tavily — AI-optimized search (needs TAVILY_API_KEY)
//! 3. Bing HTML scraping — no key, but blocked from most datacenter IPs
//! 4. Wikipedia — always works, knowledge-focused
//! 5. StackExchange — always works, technical Q&A
//! 6. DuckDuckGo — blocked from datacenter IPs, last resort
pub use *;
pub use *;
pub use *;