First part of Milestone 1: Forecast Error sensors scoring the thermal model against reality, forecast trajectories, Learning Progress and Last Sample sensors, rejected-sample and poll-outcome counters, plus lint and rollback-contract tests. README explains forecast accuracy, the 30-minute learning wait after a restart and where Developer Tools now lives. ROADMAP marks the items now backed by tests; AUDIT records the evaluation design and evidence. Still observation-only. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>