feat(runner): enforce per-job timeout; honor unset as no-cap (issue #10)Verified

Anthony Green2026-06-30 10:30:10 -0400 81b03ba99d9920bcbf9c3d9b6d1e1fe846ec0254

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>