Critical fixes after honest review:
1. reward-audit measurement: split into 3 classes (additive / transform
/ sample-selector) — one-size-fits-all metric couldn't work for
PopArt normalization or CF flip mirroring
2. H1 detection: replace undefined "Sharpe/state" with concrete
forced-exploration protocol (epsilon=1.0 for 1 epoch at mid-train,
sample states × magnitudes, compare Sharpe-per-trade)
3. H4 scope: clarify this is the per-action-branch gradient (direction
vs magnitude head), NOT the per-loss-component (IQN/CQL/C51/Ens)
budget. Fix sketch updated to target the correct knob.
4. Validation gate: criterion B (multi-fold Sharpe + WinRate) is now
MANDATORY; criterion A gates are soft. Prevents "partial success"
hiding a policy-quality failure.
5. Trade-count gate: per-fold ≥100 on ≥5/6, not an average — 5 lean
folds pooled with 1 fat one should not pass.
Minor:
- Budget trimmed to 3.5–4 hrs L40S (was 6–10)
- L40S pool made explicit as target
- Phase 1 branches now pushed as wip/* for crash safety
- Hyperopt-params mismatch handling documented
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