research: Arc 3 — six data-only signal families, designed engine-blind

Six confirm/refute families (vol-normalized momentum, mean-reversion
z-fade, vol-regime-gated breakout, H4 EMA trend, H4 breakout port,
channel-position fade) authored by engine-blind agents from a distilled
reference card plus the CLI validation loop, adversarially design-reviewed,
then run over 4 instruments x 3 stop regimes. Five honest nulls; one
candidate (vol-normalized momentum on US500, WF-OOS P<=0.05 in all three
regimes) forwarded to the Arc 4 breadth test.

blueprints/channelpos-fade-h1.json

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