plan(ml-backtesting): ISV-driven stop controller implementation plan

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11 tasks, each one commit, TDD-disciplined (test → fail → impl →
pass → commit). Covers all 11 sections of the spec at
docs/superpowers/specs/2026-05-19-isv-driven-stop-controller-design.md:

- Tasks 1-2: state slots + ATR EMA in book_update_apply_snapshot
- Task 3: stop_check_isv shared __device__ helper skeleton
- Tasks 4-6: SL trigger, trail-TP + HWM ratchet, multi-horizon avg
- Task 7: bytecode VM parity (wire helper into decision_policy_program)
- Task 8: seed_inflight_limits_batched target-delta + in-flight summation
- Task 9: pnl_track_step trail_hwm reset on close
- Task 10: atomic deletion of StopRules + use_cold_start_stopgap +
          integration-test retarget + CBSW SUPERSEDED markers
- Task 11: cluster smoke validation via argo-lob-sweep.sh

All 10 §9.1 unit tests have explicit failing-test scaffolds before
their implementations, and the retargeted integration test
(cold_start_persistent_bullish_now_closes) flips the assertion to
prove the fix.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

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jgrusewski

2026-05-19 23:32:38 +02:00

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