dag-executor 0.1.0

A production-ready DAG executor with state management and advanced patterns
Documentation 
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//! Fault-tolerance and workflow-pattern building blocks.
//!
//! * [`CircuitBreaker`] — isolate a failing dependency.
//! * [`RetryPolicy`] / [`Backoff`] — bounded retries with backoff + jitter.
//! * [`DeadLetterQueue`] — durable parking lot for exhausted tasks.
//! * [`patterns`] — fan-out/fan-in and pipeline constructors.

pub mod circuit_breaker;
pub mod dead_letter;
pub mod patterns;
pub mod retry;

pub use circuit_breaker::{CircuitBreaker, CircuitState};
pub use dead_letter::{DeadLetter, DeadLetterQueue};
pub use retry::{Backoff, RetryPolicy};