AtlasArc.io CI 1.2.0

AtlasArc.io CI 1.2.0 makes brownfield cycle-debt baselines deliberately narrow.\n\n- Selects feedback edges instead of accepting every edge in each strongly connected component.\n- Solves SCCs up to 18 architecture units exactly, minimizing selected edges first and concrete references second.\n- Uses a bounded deterministic selector for large SCCs and prunes redundant cuts.\n- Re-evaluates every proposal and refuses it unless the ordinary governance verdict is clean.\n- Reports problem references, selected cycle-breaking edges, and exact Debt records separately in CLI output.\n- Keeps module-qualified identity and exact-reference future-change protection.\n\nThe baseline JSON result contract is version 2 because its summary now exposes selectedCycleBreakingEdges.\n\nCloses #8.