CycleAdvisor

Turns detected dependency cycles into actionable break-up advice: for each cycle, the specific edge(s) to remove to make it acyclic.

The approach, per strongly connected component (over main edges only):

1. Take the SCC's induced subgraph.

2. Compute a feedback arc set - a set of edges whose removal breaks every cycle - with the Eades-Lin-Smyth greedy heuristic (deterministic, near-linear).

3. Map each arc back to the declared DependencyEdge so the suggestion can name the build file and the exact configuration(project(...)) line to delete.

Minimum feedback arc set is NP-hard, so the result is a good greedy approximation - honest as a suggestion. Removing all suggested edges for a component is still guaranteed to break its cycles. Pure functions - no I/O, no mutation of the input.