GroundedControlChecker<J: ControlJudge>::check(spec, regions, repo_id) judges each
candidate region and keeps only findings that survive the core grounding gate.
Generic over the judge so tests drive it with a deterministic stub — the
recognize->ground path is proven without an LLM (grounded snippet kept, ungrounded
dropped, non-violation yields nothing). 2 lib tests.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>