Publish harness and TUI open-source

initial sync from the monorepo

crates/common/xai-circuit-breaker/src/lib.rs

@@ -0,0 +1,26 @@
+//! Shared HTTP circuit breaker.
+//!
+//! Sliding-window-with-min-samples algorithm: the breaker trips when
+//! `sample_count >= min_samples AND error_rate >= error_rate_threshold`
+//! over the live window. Server- and client-side consumers run the same
+//! state machine and pick a preset via [`BreakerConfig::server`] or
+//! [`BreakerConfig::client`].
+
+mod breaker;
+mod clock;
+mod config;
+mod observer;
+mod registry;
+mod retry_policy;
+mod state;
+mod window;
+
+pub use breaker::CircuitBreaker;
+#[cfg(any(test, feature = "test-hooks"))]
+pub use clock::MockClock;
+pub use clock::{Clock, SystemClock};
+pub use config::{BreakerConfig, default_failure_codes, parse_failure_codes};
+pub use observer::{NoopObserver, Observer};
+pub use registry::CircuitBreakerRegistry;
+pub use retry_policy::{Disposition, RetryPolicy};
+pub use state::{BreakerOpen, BreakerState, Outcome};