//! 熔断器模块,提供AI API调用的弹性保护机制
//!
//! Circuit breaker module providing resilient protection for AI API calls.
//!
//! This module implements circuit breaker patterns to prevent cascading failures
//! and improve system resilience when calling AI providers.
//!
//! The circuit breaker monitors failure rates and temporarily stops making requests
//! to failing providers, allowing them time to recover.
pub use CircuitBreaker;
pub use CircuitBreakerConfig;
pub use CircuitState;