Tests whether a PROSPECTIVE forecaster (owner or local LLM) carries signal
the machine levers never found. Picks land premarket via dashboard panel or
research/llm_picker.py (Ollama); research/pick_scoring.py judges them under
a pre-registered bar (n>=40, >=30 sessions, mean >=+0.5%/pick net, median>0,
both halves positive). Picks after 9:30 ET stored but flagged invalid.
Shadow-only: human_picks is never read by the live loop.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>