Add Theorem 4 noise-direction audit

Claim [2]: reproduce Theorem 3 deterministic equivalent in the over-parameterized regime (p>n) -- concentration, dimension-free self-averaging, and the parameter-free self-consistent equation matched to <0.07%; full source shown

Reproduce performative regularization: Thm 1 risk min at lambda*=b̄, sim opt lambda tracks b̄ (slope 0.93), performativity-aware lambda cuts risk 19x

Update logbook: Repro - Optimal Regularization for Performative Learning (G4ve69pimc)

Update logbook: Repro - Optimal Regularization for Performative Learning (G4ve69pimc)

Update logbook: Repro - Optimal Regularization for Performative Learning (G4ve69pimc)