Concrete TDD-driven commit map for the v2 spec
(2026-05-18-ml-alpha-v2-multi-horizon-design.md). Thirteen commits
ordered by dependency: delete falsified path, build new kernels with
numgrad parity (V2-V8), trainer state bundle (V9), wire into
PerceptionTrainer (V10), local smoke (V11), cluster smoke (V12), 3-fold
A/B (V13). Per-commit verification gates and explicit stop conditions.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>