Why: Planning-only status no longer matches the candidate, while failed model samples must remain explicit.
Evidence: Native SELF receipts and independent REPLAY reports distinguish code checks, six model cases and the failed quality/fidelity boundaries; relative links verified.
Impact: Update only this approved U2/U3 planning record and validation report; CI, merge, deployment and an extra sample remain pending.
Refs: User confirmation 2026-10-13; Dev feature-fast-slow-u2-u3-plan
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