feat: dagrunner, initial version

benches/comparisons/mod.rs

@@ -0,0 +1,11 @@
+//! Head-to-head comparison benchmarks: dagx vs dagrs
+//!
+//! These benchmarks compare dagx performance against dagrs (the most popular
+//! Rust DAG library) across various workload patterns.
+
+pub mod deep_chain;
+pub mod diamond_pattern;
+pub mod etl_pipeline;
+pub mod large_scale;
+pub mod linear_pipeline;
+pub mod wide_fanout;