- benchmarks/correctness_suite.py: 21 deterministic headless (ezdxf) checks
across core ops, dimensions, arrays, geometry, query/parity, render, the
quality gate, and engineering.
- benchmarks/compare_versions.py: one-command A/B runner — checks out an older
ref into a throwaway worktree and runs the same suite against both, each check
in its own subprocess so a crash is a miss, not a run-killer.
- benchmarks/README.md: methodology, results table, honesty caveats.
- README: Benchmarks section now reports the measured result —
v1.0.0 8/21 (38.1%) -> v1.1.0 21/21 (100%); 13 fixed, 0 regressions.
