Visibility matrix: raw-evidence links + controls + limitations on all claim pages

Full-scale reproduction: all 6 claims VERIFIED (claims 1,2,3,5,6 upgraded from toy baseline; claim 4 exact audit preserved). Adds per-claim pages, real 2016 election data analysis, simulation RMSE+coverage, Delta-method asymptotic validity, von Neumann minimax LP. Historical toy baseline preserved at pages/historical-toy-baseline.

Add exact Proposition 1 closed-form policy audit

Update logbook: Repro - MiniMax Learning of Interpretable Factored Stochastic Policies

initial commit