Codex instance
74bde266d0
Make candidate ordering an explicit deterministic policy and benchmark ascending, descending, and exact-width-first choices. Keep ascending as the default because it produces the best measured time to first solution despite best-fit's slightly smaller tree. Retain the benchmark v1 interface and document why randomized and duplicate-work portfolio policies are deferred. Tests: Release and Debug CTest (10 passed each) Refs: #12